Here’s What to Do if Your Antifreeze Keeps Running Out

#driveyourlife

car coolantIs your car’s coolant level lower than usual? It could be a leak. Maybe you even notice antifreeze leaking from the front of your engine or detect the solution’s sweet smell when you turn your engine off. If your antifreeze keeps running out, there’s no need to panic. BlueDevil Products has all the information you need to find the source of the leak and get it fixed before it causes further damage to your vehicle. If you’re ready to stop losing your car’s coolant and seal those leaks today, check out BlueDevil Pour-N-Go Head Gasket Sealer, the industry’s most-trusted solution for sealing tough-to-find leaks wherever they pop up. 

Pour-N-Go!

What to Do if Your Antifreeze Keeps Running Out

Hopefully, your car coolant is going where it should be: through your engine!  The purpose of your engine’s cooling system is to, well, keep your engine cool. So, hopefully your coolant is taking its job seriously. If your car coolant is headed somewhere else, then you’ve got a problem. Cooling system problems usually show up as either an overheating engine, or a leaking engine either in the form of puddles under your car or steam pour out from under your hood. Learn more about how to solve one of the modern automobile’s most common ailments below! 

What Can Cause an Antifreeze Leak? 

Antifreeze leaks can be caused by a variety of things but the two most common factors are age and dirty coolant. Dirt or oil in your coolant can accelerate wear in your system, leading to leaks in your water pumps, at gaskets, or at o-rings. Flushing your cooling system is the best way to stop this type of leak. 

The years are also rough on cooling system components, causing plastic to get brittle and hoses to get swollen, which are the most common causes of antifreeze leaks. In this case, there is no way to prevent a leak. It is, however, still important to watch for signs of damage to any cooling system component. 

How to Tell if You Have a Leak

Obviously, the most obvious sign of a leak is a puddle of coolant under your car or antifreeze leaking from the front of your engine. However, there are a few more subtle ways that you can detect an antifreeze leak. If you’re antifreeze keeps running out quickly, you’ve almost definitely got a leak. This is much different than the slight decrease in coolant levels that you’ll notice at regular oil-change intervals.

Sometimes a leak may not be visible. Even if you have depleted coolant levels with no sign of leakage, you could still have an internal leak that isn’t detectable from the outside of your engine. Detecting a faint, sweet smell of antifreeze with no signs of a leak is also indicative of an  internal leak. 

Identifying the Source of the Leak

When identifying the different routes of coolant in your car, start by locating the radiator. It will be just in front of your engine, with an electric fan attached to it. The radiator will have two large hoses, each about 2 inches in diameter, attached to the sides or top and bottom. One hose usually leads to the thermostat while the other will lead to the water pump.

The other path your car coolant takes is through the heater core, which is best found starting at the firewall (the wall closest to the passenger compartment at the back of the engine). Your heater core is a small radiator inside the cabin of your vehicle in the ventilation system. They usually are on the passenger side of the engine compartment. These hoses will be smaller than the others (one to one-and-a-half inches in diameter). One will run to the radiator. The other will run to the engine block or cylinder head.

Once you’ve located all these components and hoses, start your vehicle’s engine and allow it to warm up watching all of these components for signs of a leak like steam or drips. If you discover your leak is coming from the end of one of the hoses in your engine it may be time to replace the hose.  If it is swollen and appears too big for the end connection, has cracks, rips or tears it is time to replace that hose.

Regularly Check Your Equipment

Checking under your hood for cracks in the cooling system’s components on a regular basis plays an important part in keeping your car in working order. If you don’t want your antifreeze to keep running out or your car to end up on the side of the highway with smoke ballooning into the sky, take a look under the hood. Check the  radiator for cracks in the tank or damage to the fins. Next check the hoses, as mentioned above, for cracks or connection issues. Lastly, you’ll want to check the freeze plugs for leaks. The plugs will be on either side of the engine block and are metal disks from 1.5 to 2.5 inches in diameter.  There will be between 2 and 4 freeze plugs, usually in a row on each side of the engine block.

The only thing you really can’t physically check is the heater core. But, if the heater core is leaking, you may notice liquid on the floor of the passenger and driver floor pan or the smell of antifreeze when you turn the blower on. 

How to Fix an Antifreeze Leak in One Easy Step

If your hoses seem like they’re in good shape, that’s a good sign. That means that there’s an easy way to stop your antifreeze from running out. BlueDevil Pour N’ Go is non-particulate sealer that reacts to the temperature differential created at the leak point, sealing leaks as it filters through your system. Simply our the solution in with your coolant, and let it work its magic. Your leaks will be sealed within two regular driving days! 

BlueDevil Pour N’ Go  

BlueDevil Pour-N-Go Head Gasket Sealer

 

 

 

 

 

 

You can also pick up any of our great BlueDevil products at your partnering local auto parts stores like:

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  • S&E Quick Lube Distributor
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  • Consumer Auto Parts

Pictures Provided By:

car_coolant.jpg – By MG_54 – Licensed by Getty Images – Original Link

185 responses to "Here’s What to Do if Your Antifreeze Keeps Running Out"

185 Comments

  1. Lee on August 20, 2014 at 7:57 pm

    My friend has a Chrysler Pacifica. She has engine oil getting into her coolant system. And her water pump is leaking. Will your product work on her car. I’m pretty shre her head is warped, or her intake gasket is damaged.

    • BlueDevil Pro on August 21, 2014 at 6:45 pm

      Lee,

      Unfortunately if Oil is getting into the coolant system our product will not work.

      Please feel free to call 1.888.863.0426 if you have any other questions.

      -BDP

    • Carmen on May 9, 2017 at 10:17 pm

      Have car over heat and lost of coolant

      • BlueDevil Pro on May 10, 2017 at 8:59 am

        Carmen-

        How quickly is the vehicle overheating? Please contact our technical support line at 888-863-0426 so that we can get a better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

        Thank you!

        -BDP

    • sebota moeta on October 14, 2019 at 7:12 am

      my car was just from the mechanic them after travelling more 10 km it shows overheating and rising temperature then it consumes an lot of water and then engine perfomence is very poor with high iddling….what could be the problem..?

      • BlueDevil Pro on October 14, 2019 at 9:37 am

        Sebota-

        Did the mechanic diagnose the vehicle at all? Based on your description, it is possible that you are getting combustion/exhaust gases pumping back into the cooling system. You can use a “Block Dye Tester” to confirm whether or not that is the case.
        BlueDevil Head Gasket Sealer will still work if your vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly. Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system.

        Thank you!

        -BDP

        • Susan Landry on June 5, 2021 at 12:15 am

          Would it be wise to buy a used car that has white smoke coming out runs good low on coolant doesn’t overheat but thermostat won’t open and bubbles coming up.out the radiator and uses about a quart of oil every 4to 6 weeks 04 Durango

          • BlueDevil Pro on June 7, 2021 at 4:05 pm

            Susan-

            If possible, we’d recommend looking into buying a different vehicle. It is never a good idea to buy a vehicle with both known and unknown pre-existing issues. It could end up costing you more to fix the vehicle than it cost to purchase the vehicle in the first place.

            Thank you!

            -BDP



    • Pam Carroll on October 26, 2020 at 5:39 pm

      I have a ? I have a 2005 town and country a put water in the radiator and it just pours out when I start my van under the van and out of the agxost but it is not in my oil would this product work

      • BlueDevil Pro on October 27, 2020 at 8:31 am

        Pam-

        Thank you for asking about your Chrysler Town & Country. Unfortunately, it sounds like you may be losing water a little too quickly for BlueDevil to be beneficial. If the water is just pouring out as soon as you start the vehicle, you would lose the product just as quickly, and wouldn’t really be able to keep it in the system long enough. A hard part repair may be your best option.

        Thank you!

        -BDP

  2. Judy Holstein on August 20, 2014 at 9:55 pm

    I have/ had a slow head gasket leak in my 2002 Dodge Stratus. Since I recently put in new thermostat, new water pump, water terminal, and a part called an activant I was shocked that this summer became a nightmare. I had my mechanic use the Blue Devil treatment less than 48 hours ago. I have no more savings and on social security and can’t afford a car payment. I drove it this am to a couple of necessary stops maybe going 8 miles. It was hot outside and I did not run ac. All I noticed is a drop of liquid had come out of the front left section. This was about the size of a nickel. Is that normal? Please advise as this is my last resort for my former independence and I am only 64. Thanks!

    • BlueDevil Pro on August 21, 2014 at 4:54 pm

      Judy,

      Please give our tech line a call at 1.888.863.0426 so we can discuss your application in more detail and take the appropriate steps.

      -BDP

    • Linda Hammonds on February 11, 2018 at 11:47 pm

      I have a nineteen minty nine Pontiac grand Prix put head gasket sealant in three months ago and had to put antifreeze in it ever since now the oil is a light brown in color and white exhaust is coming out of tail pipe did my sealant broke and antifreeze is going into my oil miss Linda going crazy

      • BlueDevil Pro on February 12, 2018 at 1:26 pm

        Linda-

        Thank you for asking about your Pontiac Grand Prix. Which BlueDevil Head Gasket Sealer did you use? Are you saying that the product sealed up until now and water/coolant is starting to get back into the oil again or that it never completely sealed the leak? Please contact our technical support line at 888-863-0426 so that we may assist you with the warranty on the product and be able to make any appropriate recommendations.

        Thank you!

        -BDP

  3. Stephanie J on February 25, 2015 at 5:06 pm

    My 2004 Ford Taurus is losing coolant, but there are no leaks. I don’t even see AnY drips coming from anywhere and my oil is not milky. I cannot figure this out. AnY ideas?

    • BlueDevil Pro on February 26, 2015 at 9:15 am

      Stephanie-

      It is possible that you are losing coolant internally, it is being turned to steam and exiting through your tailpipe.

      We recommend using the BlueDevil Head Gasket Sealer to help stop your coolant loss. The product can be viewed here: http://store.gobdp.com/head-gasket-sealer-38386/

      -BDP

    • Edgar on November 20, 2016 at 9:46 am

      I do not see any leak visible water leaks so where is the coolant operating to end my radiator and reserve tank. So what is my solution. Where do I put the Blue Devil oil seal

      • BlueDevil Pro on November 22, 2016 at 9:37 am

        Edgar-

        Please contact our technical support team at 888-863-0426 so that we can get a better understanding of your vehicle’s condition and be able to make any appropriate recommendations.

        Thank you!

        -BDP

  4. Camille on May 29, 2015 at 2:08 pm

    i have a 2000 malibu…i dont kniw where my coolant is going….the fan works…no leaks…on the ground…new water pump….new hoses…but my car still runs hot and the reservoir is empty all the time i need advice

    • BlueDevil Pro on May 29, 2015 at 3:12 pm

      Camille-

      It sounds like you definitely have a leak in the cooling system, most likely from your head gasket(s). We recommend using 16 ounces of the BlueDevil Head Gasket Sealer to help stop your coolant loss and overheating.

      Feel free to contact us at 888-863-0426 with any questions.

      Thank You!

      -BDP

      • Michelle on January 24, 2016 at 8:46 am

        I have an 06 Malibu doing the same thing. They have replaced hoses, head gaskets.. Basically the entire cooling system and I’m still losing coolant.. Would it be worth giving this a shot? I have put to much money into this car.

        • BlueDevil Pro on January 28, 2016 at 11:56 am

          Michelle,

          Thanks for your question about your Malibu. Mystery leaks like this can be elusive. To confirm that you have a blown head gasket you can purchase a chemical test kit from your local auto parts store to check for exhaust gases present in your coolant. You can also have a pressure test performed on your cooling system by your mechanic which would also help prove you have a blown head gasket.

          If either of these check positive we would recommend you using BlueDevil Head Gasket Sealer to seal the leak in your cooling system and get your car running back normally.

          Thanks again for your question!
          -BD Auto Pro

      • Christopher Alan Cronberger on May 7, 2017 at 10:49 am

        My name is Christopher, I purchased a used 2001 Chevrolet Malibu LS back in December of 2016 for myself & this car was parked at the end of my ma’s block with for sale signs on the Windows. It had at the time 174, something miles on it. Beautiful condition. I needed some wheels badly. I test drove it for a half hour drove awesome & yes still drive’s like a dream. Well; I have owned it for almost 5 months now & for the past 2 months it’s been costly buying engine coolant every few day’s. I have no leaks at all. Every morning I have to check my reservoir to make sure there’s coolant in the reservoir that’s a MUST. So therefore I have found out that it’s going through my engine, burning up & coming out of the tailpipe. I obviously do need to get a standard tuneup cause my car is also misfiring too. Yes I know the vehicle is 16 yrs old, but…if you keep them up & don’t beat on your vehicle’s they will last for quite sometime as well. Open to any comments or suggestions for my Malibu LS. Thank you for taking the time to read my car problems. Takecare.

        • BlueDevil Pro on May 8, 2017 at 10:01 am

          Christopher-

          Thank you for asking about your Chevrolet Malibu. Based on your description, it is possible that you are getting combustion/exhaust gases pumping back into the cooling system.  You can use a “Block Dye Tester” to confirm whether or not that is the case. If that is the case, we recommend using the BlueDevil Head Gasket Sealer.
          BlueDevil Head Gasket Sealer will still work if your vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure.  To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading.  If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull.  Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.  Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system.

          Thank you!

          -BDP

      • WAYNE on April 2, 2018 at 11:37 am

        I put a sealer in my radiator called dike because I’m losing coolant in the reservoir and also White smoke is coming out of my tailpipe at startup .. this day number 2 seem like it’s not working if… If i wanted to put Blue Devil in there do I need to drain the system completely

        • BlueDevil Pro on April 2, 2018 at 12:33 pm

          Wayne-

          Prior to adding the BlueDevil Head Gasket Sealer, you would want to drain and thoroughly flush the cooling system. Not knowing the chemical formulation used in your previous application, we would not recommend mixing the two. Feel free to contact our technical support line at 888-863-0426 with any other questions.

          Thank you!

          -BDP

    • Mary on January 17, 2017 at 6:50 pm

      I had a 1999 malibu and had blown a head gasket. So I replaced the engine and not even 2 years later boom another blown head gasket. Bad cars for intake manifold and head gaskets.

  5. Vinod Tank on June 8, 2015 at 4:00 pm

    Vinod here,
    I have Toyota Camry 1996 model, 4 cylinders, mysteriously loosing my engine coolant, I tried to see any leaking, dripping but could not see, went to my car Mechanic; he put pressure testing instruments on radiator inlet, keep almost one hour under pressure, there was no visible leak from cooling systems, coolant pump, hose, engine ! yet coolant is missing , after short drive ! Can you suggest how can I stop mysteriously loosing coolant, and getting my car overheated. Since long, I am passing this situation, l live in Chino, CA., hot enviroment all time in summer ! Please suggest me remeady .

    • BlueDevil Pro on June 19, 2015 at 2:05 pm

      Vinod-

      Due to the fact that it is definitely losing coolant, there has to be a breach somewhere within the cooling system. We recommend using 16 ounces of the BlueDevil Head Gasket Sealer to help stop the coolant loss and get your vehicle back to running properly.

      Thank You!

      -BDP

  6. Mrs Moore on July 18, 2015 at 6:47 pm

    I have a 2005 chrysler pacifica i used some blue devil head gasket sealer. My hose was damaged and i lost some of the fluid. I am currently still losing water from somewhere. Do you think i should repeat the blue devil sealant or could my heater core be blocked?

    • BlueDevil Pro on July 21, 2015 at 10:49 am

      Mrs. Moore-

      We would like to get a little more detail as to the symptoms your Chrysler is experiencing and how long ago the BlueDevil was applied. Please contact our tech support team at 888-863-0426 (8:00 AM – 5:00 PM EST, Monday – Friday) so that we can discuss your vehicle in more detail. This will allow us to give you the best recommendation for getting the vehicle working properly again.

      Thanks!

      -BDP

      • Austin on April 7, 2017 at 5:55 pm

        I have a 2005 LaCrosse with a 3.8. I keep losing coolant as well with no leaks. The car runs at normal operating temperature while moving but when it idles for a few minutes after the motor has been running awhile it will start to overheat. I don’t have any noticible leaks. I have replaced the elbow tubes that connect to the tensioner and water pump from the block and replaced the thermostat with a fail safe one. I topped the radiator off and a few days later the coolant was gone. Will your product work for my issue? The oil is not milky nor do I smell hot coolant or notice any steam.

        • BlueDevil Pro on April 10, 2017 at 9:54 am

          Austin-

          Thank you for asking about your Buick Lacrosse. Based on your description, we recommend using the BlueDevil Head Gasket Sealer (http://store.gobdp.com/head-gasket-sealer-38386/). As long as the vehicle will maintain idle for a full 50 minutes, and you are not losing more than about a quart of water/coolant during that 50 minutes, you would be a great candidate for the product.

          Thank you!

          -BDP

  7. Jacob on August 30, 2015 at 12:02 am

    My truck is using excessive coolant, I can see no leaking from any of the hoses involved. The truck does not overheat(yet) but I do see a small slow leak from the inner bottom corner of the radiator. What do need to do?

    • BlueDevil Pro on September 14, 2015 at 3:48 pm

      Jacob-

      We recommend adding the recommended amount of the BlueDevil Head Gasket Sealer (http://store.gobdp.com/head-gasket-sealer-38386/). This will help stop any coolant loss. The product can be purchased locally through many auto parts retailers such as AutoZone, Advance Auto Parts, O’Reilly Auto, etc.

      Feel free to contact us at 888-863-0426 with any questions.

      Thanks!

      -BDP

  8. Cecilia Baker on September 11, 2015 at 9:08 am

    I have a 05 Chrysler Pacific and had a transmission flush & every since I have to put antifreeze / water in coolant container smoking under hood .please help me why I’m I running out is it the radiator ?

    • BlueDevil Pro on September 25, 2015 at 12:23 pm

      Cecilia,

      Thanks for your question about your Pacifica. It does sound like you have a coolant leak coming from somewhere under the hood. Our experience is that if you have a problem right after having maintenance done, they are often related. If you have a proper coolant flush they would have removed the transmission lines going to your radiator so our best guess would be that you have a leak there. If this is the case, our recommendation would be to take it back to the mechanic that did the work and see if they’ll replace your radiator as a courtesy.

      Thanks again for your question!
      -BD Auto Pro

  9. Lucy C on September 20, 2015 at 1:23 am

    My car suddenly leaked an excess amount of coolant. There was some steam but not much. I have no idea where the leak is coming from.

    • BlueDevil Pro on September 21, 2015 at 2:48 pm

      Lucy-

      We recommend adding the proper amount of the BlueDevil Head Gasket Sealer. This product is specifically designed to stop coolant loss.

      Feel free to contact us at 888-863-0426 with any questions along the way.

      Thank you!

      -BDP

  10. dexter on October 13, 2015 at 5:02 pm

    I own a 99dodge intrepid es. It is starting to leak antifreeze. It’s like every 2 days I got to add antifreeze. I had it check. Hoses good. Radiator good. . from the reservoir the thermostat is working.
    Any idea what’s wrong or do u recommend blue devil?
    Please help.!!!!! Antifreeze is too expensive to buy like that.
    Oh I use the 50/50 antifreeze. Is that OK or do I need to do straight antifreeze? Help asap

    • BlueDevil Pro on October 16, 2015 at 10:09 am

      Dexter-

      Based on your description, we would recommend using the BlueDevil Head Gasket Sealer. As long as you are not losing coolant/water too quickly and the vehicle is able to maintain an idle for 50 minutes, without overheating or stalling out, then you should be able to see some great results from the product.

      Thank you!

      -BDP

  11. Travis Lymon on October 18, 2015 at 6:17 pm

    I drive a 2005 Nissan Murano .. this vehicle has been a champ.. I havent had one bit of trouble out of it since the day i bought it , But , I am now having to add coolant once a week .. Its not leaking . and I dont have a clue where its going .. My fan runs constantly , sometimes I have heat, sometimes I dont .. usually if I get up some speed I get heat.. My temp gauge is doing back flips.. But the car NEVER over heats.. I have had a new radiator and new hoses put on the car. I have had pressure test done.. I just dont understand what is going on with it .. Do you ?

    • BlueDevil Pro on October 24, 2015 at 10:26 am

      Travis,

      Thanks for your question about your Murano. Usually, mystery coolant leaks with no evidence combined with erratic temperature gauge readings are a pretty good indication of a blown head gasket. If your pressure test came back normal, it seems a little less likely but it could still be a very small leak. The last thing you could try is changing your thermostat and see if that gets things back to normal, but if not, we’d recommend trying BlueDevil Pour-N-Go to see if that can seal your mystery leak and get things back to normal.

      Thanks again for your question!
      -BD Auto Pro

      • muhammad on March 11, 2016 at 12:03 pm

        I have an astra 1.7 cdti sri my car is losing coolant and now my car want start and also i dont know wer the coolant is going. And since my astra started losing but iv bin ading jus water . Can you tel me what the problem may be please.

        • BlueDevil Pro on March 19, 2016 at 1:37 pm

          Muhammad,

          Thanks for your question about your Astra. If you’re loosing coolant and don’t know where it’s going it could be due to a blown head gasket as the coolant would be going into your engine. You also may simply have a slow leak, or a leak that only opens up when the system is warm so the coolant is evaporating before it leaves a drip or puddle on the ground. You could try testing your compression to see if you have a blown head gasket or adding UV dye to the coolant to help identify where the leak is. Once you’ve determined the source of the leak, you can use the appropriate BlueDevil leak stop additive to seal the leak.

          Thanks again for your question!
          -BD Auto pro

  12. Kayla on November 28, 2015 at 9:34 pm

    My carr blows warms air and is about half way point while driving around town. But when i go 55-60 on the highway the temperature gauge sits at about a quarter and its cold outside. and since it got colder I’ve put in antifreeze in every other day it seems. Does this mean i need a thermostat?
    During the summer the temp gauge always sat at half mark.

    • BlueDevil Pro on December 21, 2015 at 11:53 am

      Kayla,

      Thanks for your question about your car. It does sound like you’ve got a bad thermostat that is staying open too much on the highway. It also sounds like you may have a decent leak as well since you’re adding so much antifreeze. If you haven’t had a cooling system flush recently, we would recommend performing a flush using BlueDevil Radiator Flush (available here: http://store.gobdp.com/radiator-flush-00204/) when you replace your thermostat and add new coolant to make sure everything is operating at full efficiency. Also, before you replace your radiator, we would recommend checking your cooling system for leaks and replacing any old hoses.

      Thanks again for your question!
      -BD Auto Pro

  13. ronald kimball on January 19, 2016 at 6:29 am

    i have a 2001 dodge grand caravan sport she is loosing antifreeze and i cannot find were and niether can my michanic i get about 6 miles till she is empty what can i do

    • BlueDevil Pro on January 19, 2016 at 12:04 pm

      Ronald-

      Thank you for asking about your Dodge Grand Caravan Sport. Based on your description, unfortunately, we would not recommend using BlueDevil in this situation. It seems you may be losing coolant a little too quickly for what the product is intended for. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

    • Shirlene on July 6, 2016 at 11:42 am

      Hi Ronald, I have a 2001 Dodge caravan sport as well and it is doing the same thing, did you find out what was causing your issues? Thank You for any advise you may offer

      • Marie Wood on September 21, 2018 at 12:04 am

        Me too. Anyone find out what was going on with their caravan?

        • BlueDevil Pro on September 21, 2018 at 8:19 am

          Marie-

          Feel free to contact our technical support line at 888-863-0426 with any questions.

          Thank you!

          -BDP

  14. Kayla Tyler on January 30, 2016 at 10:58 pm

    I am loosing coolant in my 2002 Ford Taurus 3.0 Vulcan engine. My reservoir tank was just filled about 3 weeks ago when I had my water pump replaced due to excessive coolant loss and smoking from by the water pump. Everything was fine until about 3 days ago. I do not see where any coolant is leaking. There are no spots on my garage floor but since filling my reservoir 3 weeks ago my tank has maybe an inch of coolant in it. It also started smoking really bad again by the water pump. It is white smoke and only does this when I turn my heat on. Car doesn’t overheat at all when heat is on or off. Any idea if your product would help or what my problem may be?

    • BlueDevil Pro on February 2, 2016 at 10:47 am

      Kayla-

      Please contact our tech support team at 888-863-0426 so that we can get more detail about your vehicle and be better able to make the best recommendation to you. Depending on the symptoms you have seen we may be able to recommend a BlueDevil Product that will remedy the problem.

      Thank you!

      -BDP

  15. Sherri on February 7, 2016 at 3:05 am

    I have an 2003 Ford explorer that keep loosing antifreeze with no leaks on the ground but has white smoke in front when opening the hood,

    • BlueDevil Pro on February 8, 2016 at 4:27 pm

      Sherri-

      We recommend using BlueDevil Head Gasket Sealer (http://store.gobdp.com/head-gasket-sealer-38386/). This will stop any coolant loss you are experiencing and get the vehicle running as it should again.

      Thank you!

      -BDP

      • Harold Swann on April 8, 2018 at 11:34 am

        How long does it take for blue devil to work? I put it in 2 days ago and its still losing coolant.

        • BlueDevil Pro on April 9, 2018 at 9:28 am

          Harold-

          Please contact our technical support line at 888-863-0426 so that we may assist you in obtaining the warranty on the product.

          Thank you!

          -BDP

  16. Carlos on February 7, 2016 at 4:25 am

    hi i have a dodge neon 2005 sxt , 2.0 engine sohc that too seem to be loosing coolant misteriously. About a 1000 miles drive i add close to a half a gallon to a gallon per approx 1000 miles. I find also a smell of antifreeze i perceive slightly. The car does not overheat (stays from a quarter to less than half in the gauge all through trips and all and seems to be acting normally) so no overheat problems. Oil is normal colour , normal smell, etc. No white smoke but yet i seem to be loosing a bit of coolant like half gallon per 1000 miles. No visible leaks , where is it going??? could it be a bad cap? or is it a head gasket leak?? NOTE: i did notice that the main radiator hose was ‘inflated” loking like if it had air trapped or so, yet is not full of coolant, could it be that i need to purge it?? any advice on what to use? or what is going on? thanks

    • BlueDevil Pro on February 15, 2016 at 8:41 pm

      Carlos,

      Thanks for your question about your Neon. If you do suspect a head gasket leak you can always check for that using a chemical test available at most auto parts stores that checks for the presence of exhaust gases in your coolant or by having a compression check done on each cylinder. For small leaks, you can also add UV dye to your coolant, drive for a few days, then park your car in a dark garage and search for traces of the UV dye in your engine bay.

      Since you mentioned you smell coolant it is possible that you have a leak in your heater core. That would allow coolant to leak into your ventilation system where it may drain out of your AC condensate drain where you most likely wouldn’t notice it.

      Thanks again for your question!
      -BD Auto Pro

  17. Maritza on February 17, 2016 at 12:31 am

    I have a 1999 Honda civic so the water in my reservoir disapears in three days or so car does not heat up and still water in radiator what can ithe be

    • BlueDevil Pro on February 17, 2016 at 10:13 am

      Maritza-

      We recommend that you first check to see if the reservoir is cracked or has a leak somewhere. If so, then it should be replaced.

      Thank you!

      -BDP

  18. Lori on May 5, 2016 at 10:10 am

    I have a 2003 pt cruiser I put a new water pump on and have taken the thermostat out was told don’t really need it my car does not over heat but I have to add 50/50 just about every other day any help will be great

    • BlueDevil Pro on May 5, 2016 at 10:23 am

      Lori-

      Thank you for asking about your PT Cruiser. Based on your description, we recommend using the BlueDevil Head Gasket Sealer, found here: http://store.gobdp.com/head-gasket-sealer-38386/ . As long as you are not losing water/coolant too quickly, you would be a good candidate for the product. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  19. Arturo on May 10, 2016 at 7:30 pm

    My kia sedona loosing lots of coolant, can’t find the leak anywhere, hoses looks good, I’m scare is going to the oil, how can I check

    • BlueDevil Pro on May 11, 2016 at 11:10 am

      Arturo-

      An easy way to check is to pull the dipstick if you notice a “milky” look to the oil then it most likely has water/antifreeze in the oil.

      Feel free to contact us at 888-863-0426 and we would be happy to assist you in diagnosing whether or not water has leaked into the oil.

      Thank you!

      -BDP

      • Elaine on January 8, 2019 at 12:07 am

        We have a 2005 Suzuki forenza. Had white smoke from the tailpipe. When water/antifreeze is added and then disappears almost immediately. Dipstick seems to indicate water/oil mix (dark/milky oil on the dipstick). My husband drained the oil added new oil and the smoke went away.. Also low compression – car seems to halt or shut off a lot.

        What do you recommend?

        • BlueDevil Pro on January 8, 2019 at 8:52 am

          Elaine-

          Thank you for asking about your Suzuki Forenza. Based on your description, unfortunately, it does sound like the issues you are having are head gasket related. The BlueDevil Head Gasket Sealer (https://store.gobdp.com/head-gasket-sealer-38386/) would be effective as long as the vehicle is able to maintain idle for a full 50 minutes, and you are not losing more than about a quart of water/coolant during that 50 minute run. You would want to change the oil before and after the procedure.

          Thank you!

          -BDP

        • Patricia on June 28, 2019 at 3:20 pm

          Hello, I had my car for 3 years. It’s a chevy eqounix.
          It had not given me any problems until I put some bad gas in it unfortunately.
          I had gotten a coolen flush, and a couple if other things done. My problem now is my antifreeze to Reservoir is dis appearing. I don’t see anything on the ground so wear is it going. I can drive it and it’s overheating too. And my engine light is on. It use to come on and than go off. Now it’s stays on. I’m a woman please help me. What is wrong with my car. I’m praying that it won’t cost a lot of money.

          • BlueDevil Pro on July 1, 2019 at 10:22 am

            Patricia-

            Thank you for asking about your Chevy Equinox. How quickly are you losing coolant? Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

            Thank you!

            -BDP



  20. Todd dunaway on May 16, 2016 at 5:35 pm

    I have a 98 Honda Civic losing water not overheating did a pressure test won’t hold pressure but can’t find leak plz help

    • BlueDevil Pro on May 17, 2016 at 9:10 am

      Todd-

      Thank you for asking about your Honda Civic. Based on your description, we recommend using the BlueDevil Head Gasket Sealer. As long as you are not losing water too quickly, you would be a good candidate for the product. Feel free to contact our technical support team at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  21. Jeannie on May 19, 2016 at 1:57 pm

    My 1999 Malibu has a slow leak directly under the reservoir. The temperature never gets past the half way mark and the heater still works, but every other day the reservoir is empty. It seams like its loosing more fluid than the amount found by the leak. Should I change the thermostat? –

    • BD Auto Pro on May 25, 2016 at 5:42 pm

      Jeannie,

      Thanks for your question about your 99 Malibu. Great job keeping an eye on the temperature gauge and keeping your coolant reservoir full, that will help keep your car safe while you’re figuring out this problem. The leak you’re describing does sound like a pretty fast leak, but often coolant leaks look smaller than they really are because they leak the fastest when your car is warm and driving and the coolant often evaporates before you have a chance to check for evidence of a leak.

      You may try leaving your car running next time you get home from a longer drive and check for steam or for more fluid to help you pinpoint where the leak is coming from. Just be careful not to burn yourself and to stay clear of your engine’s fans.

      The problem you’re describing doesn’t sound like a problem with your thermostat since your vehicle’s temperature remains constant and it hasn’t overheated, we would recommend tracking down the leak first as it most likely is from a small hose somewhere near your coolant reservoir.

      Thanks again for your question!
      -BD Auto Pro

  22. Faleisha Milton on June 2, 2016 at 9:45 pm

    i have an 06 dodge grand caravan. my radiator stays empty and i don’t see a leak under the radiator. when i look the water is pouring from further back. i have to put water in it at least 3 times a day and once i put it in i watch it come out. where could the water be coming from because it leaks from right behind the motor.

    • BlueDevil Pro on June 6, 2016 at 3:03 pm

      Faleisha-

      The amount of water/coolant that you are losing from your Dodge is more extreme than what our BlueDevil Head Gasket Sealer is intended to fix. The only way to fix a severe leak such as yours would be to replace/repair hard parts.

      Thank you!

      -BDP

  23. Sam Wilson on June 6, 2016 at 12:48 pm

    Hi I have a Citroen xsara Picasso my radiator is leaking from the bottom of the radiator but not sure where abouts as the water runs along the bottom of the radiator I’m constantly topping up with water any idea’s on this one thanks Sam

    • BlueDevil Pro on June 6, 2016 at 2:13 pm

      Sam-

      Please contact us at 888-863-0426 so we can get a better idea of how quickly you are losing water/coolant? Depending on the extent of the leak we may be able to recommend one of our BlueDevil Products.

      Thank you!

      -BDP

  24. TRICIA SELLERS on June 25, 2016 at 3:43 pm

    I have a 2006 Malibu Maxx. Yesterday morning my low coolant light came on during my 45 min drive to work and later my lunch break was cut short as the gauge shot up to “HOT” and lights were blinking all over the place. Just had my oil changed and fluids topped off a month ago, and when i looked under the hood my antifreeze was gone, but i could not locate where it had gone to. Nothing dripping under the hood or under the car itself. I filled it back up with antifreeze and was able to drive about an hour or so last night, and this morning the gauge was creeping towards HOT after about 5 mins of driving, and my reservoir tank was almost empty already, had to fill it with another bottle of antifreeze. i don’t see leaks anywhere, but certainly could be happening when i’m driving and i don’t notice it.

    • BD Auto Pro on June 28, 2016 at 9:56 pm

      Tricia,

      Thanks for your question about your 2006 Chevy Malibu. Coolant leaks can be difficult to find because they are steam while your car is running. Based on how quickly you say your car is loosing coolant, it sounds like your leak is pretty large. Try checking for some other signs of a blown head gasket like milky colored oil, smoke from your trail pipe or bubbles in your radiator.

      To quickly find your leak, you can try adding UV dye to your coolant, then checking your car over at night with a black light to see where the leak is. You can find UV dye at most auto parts stores. When you find your leak, you can use the appropriate BlueDevil stop leak agent available here: http://store.gobdp.com/products/.

      Thanks again for your question!
      -BD Auto Pro

  25. Braxton on June 28, 2016 at 7:34 pm

    I have a 91′ Toyota Land Cruiser inline 6 4.0, about every month I’ll need to add about a half gallon of antifreeze to the radiator, but I can’t find where the leak is going. The oil is clear and definitely has been chemically tested and was told there were no chemicals of antifreeze in the oil, I have checked to see if the overflow container leaks, and everything else. No go, I installed a new thermostat myself, and gasket, but can’t find a leak anywhere. I checked all obvious places but under the block is bone dry. New radiator as well, it has got me wondering, is it possible the cooling system is leaking into the exhaust system and burning there? I haven’t seen any white smoke from the exhaust..could your product patch whatever leak I have going on?

    • BlueDevil Pro on June 29, 2016 at 8:53 am

      Braxton-

      Thank you for asking about your Toyota Land Cruiser. Although it does not seem you have any of the tell-tale signs of a blown head gasket, that fact that you are losing coolant would make you a good candidate for the BlueDevil Head Gasket Sealer. It’s possible that you are only losing coolant while the vehicle is in motion, explaining why you are not really seeing a leak. If water/coolant was leaking into the exhaust system, you would see white smoke coming from the exhaust pipe. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  26. Jordan brodie on July 6, 2016 at 12:26 pm

    Hi I have 2005 hyundai elantra and i have been having cooling system problems i changed the radiator and i was wondering when you add coolant into the radiator does the level stay the same or as you drive does it lower ( flow through)

    • BlueDevil Pro on July 14, 2016 at 10:15 am

      Jordan-

      The coolant level should not drop unless you have a leak somewhere in your cooling system. If the level is dropping over time then we recommend contact us at 888-863-0426 so that we may discuss our products and assist you in getting the best one for stopping the leak.

      Thank you!

      -BDP

  27. Vanessa on August 1, 2016 at 3:13 pm

    I keep having to put coolant in the container which is next to my power steering container. I check the radiator and its full. I have a 1993 toyota camry.

    • BlueDevil Pro on August 4, 2016 at 8:50 am

      Vanessa-

      Thank you for asking about your Toyota Camry. Please contact our technical support line at 888-863-0426 so that we can get a better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  28. Nico on August 8, 2016 at 6:31 pm

    hi, i have toyota yaris sedan 2012 from saudi arabia. I mistakenly drained the radiator coolant and drive it for around 20 kilometers. While driving, i heard a little noise when pressing the pedal which sounds like metal to metal and the overheat warning light is on. I keep on driving and the car stopped. I started it again and drive another 5 kilomoters and the car stopped again. It was just the moment that i realized that i drained the radiator and when i check it, it was smoking upon opening the cap. After that, i fill the radiator full with coolant and i thought my problem was resolved. After 2 weeks of using my car again, the overheat sign was back. And upon observation, i was losing around 1 liter of coolant every time i drive 40-50 kilomters. Upon checking, there is no leak in the hose or everywhere. My question is, where the coolant is going? Thanks for d help

    • BlueDevil Pro on August 18, 2016 at 1:53 pm

      Nico-

      Thank you for asking about your Toyota Yaris. From the sounds of it, when the vehicle was driven without water/coolant in the system, it overheated and unfortunately, may have blown the head gasket. Water/coolant getting in the oil or smoke coming from the exhaust pipe would be tell-tale signs of a blown head gasket, so it would be a good idea to start your search there. Another possibility could be that the water/coolant is getting back into your cylinder heads. If you are experiencing a rough idle or getting a misfire reading or code, that may be an indication as to where the coolant is going.
      As long as you are not losing water/coolant too quickly, and the vehicle can idle for a full 50 minutes without overheating or stalling out, you would be a good candidate for the BlueDevil Head Gasket Sealer, found here on our website: http://store.gobdp.com/head-gasket-sealer-38386/ . Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  29. Dee on August 24, 2016 at 3:13 pm

    Hello I have a Chrysler Pacifica Everytime I pour antifreeze or water in it disappears and now im starting to see a slow water leak underneath the engine some where on the passenger side so I don’t know if it’s a hose or something else because you can’t see any bottom hoses so I was wanting to know would the blue devil product work if so which one I believe I have a v6 engine and it’s a 06 Pacifica . Thanks

    • BlueDevil Pro on September 1, 2016 at 10:44 am

      Dee-

      Thank you for asking about your Chrysler Pacifica. Based on your description, we recommend using the BlueDevil Pour-N-Go Head Gasket Sealer, http://store.gobdp.com/pour-n-go-head-gasket-sealer-00209/. As long as the vehicle will maintain idle for a full 50 minutes, and you are not losing more than about a quart of water/coolant during that 50 minutes, you would be a great candidate for the product.

      Thank you!

      -BDP

  30. Cindy on August 30, 2016 at 9:56 pm

    I have a 05 3.8L chysler Pacifica I keep losing my coolant I seem to have a water leak in the front of my radiater it continues to leak water, coolant what ever I put in it I called chysler they do not make that part I’m stuck what can I do

    • BlueDevil Pro on September 1, 2016 at 9:51 am

      Cindy-

      Thank you for asking about your Chrysler Pacifica. Based on your description, we recommend using the BlueDevil Radiator & Block Sealer, found here on our website: http://store.gobdp.com/radiator-block-sealer-00205/. As long as you are not losing more than about a quart of water/coolant during the 45 minute idle, you would be a great candidate for the product. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  31. John on September 24, 2016 at 10:52 am

    I have a new 2014 Chevy Cruze 1.4l, I’ve noticed that over time it has slowly been losing coolant but I don’t see a leak anywhere, the leak is very slow. What should I do?

    • BD Auto Pro on September 28, 2016 at 7:18 pm

      John,

      Since your car is so new, you may consider taking it to a dealership to see if it is still under warranty. It’s not usual to slowly lose coolant due to evaporation in some vehicles so this may be what’s happening in your car. For very slow leaks like this, you may consider adding some UV dye to your coolant. After a few days of driving, you can park you car in a dark place and use a black light to look for traces of the dye around your cooling hoses, gaskets, block and radiator.

      Thanks again for your question!
      -BD Auto Pro

  32. Andrew B on September 25, 2016 at 7:46 pm

    I have a 2002 Toyota Camry 4 cylinder engine. I recently started to loose coolant, however there is no visible leaks and signs that the coolant is being burned off through the tailpipe. The car has not overheated.

  33. Ethan on October 1, 2016 at 5:18 pm

    i recently flushed my coolant and replaced it with coolant and distilled water but it didn’t take the amount it supposed to hold. It supposed to hold about 20 quarts which is roughly close to five gallons and it only took a little less than three gallons total (coolant/water) My truck is a F-150 2006, v8 4.6l

    • BlueDevil Pro on October 4, 2016 at 10:02 am

      Ethan-

      Are you noticing a loss of water/coolant? Please contact our technical support line at 888-863-0426 so that we can get a better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  34. Eyver Dominguez on October 5, 2016 at 7:41 am

    I have a Volvo 850 1995 that I had sit for 3 weeks while I was on vacation before I left the thermostat had broke and was over heating until I pulled it out and now that I’m back the water reservoir is is empty everyday and I fill it up before I go but i don’t know where the water is going. There are no visible leaks.

    • BD Auto Pro on October 7, 2016 at 12:15 pm

      Eyver,

      Thanks for your question about your Volvo. Based on your question you could have quite a few different things going on. Our best guess is that you’ve got a coolant leak that only shows up once your system is hot and pressurized. Coolant that leaks while hot easily evaporates and can leave almost no trace of the leak.

      One thing we would recommend doing is adding UV dye to your engine coolant and driving for a few days. After a few days of driving, park your car in a dark garage and use a UV flashlight to search for evidence of your coolant leak around your engine bay and under your engine.

      Thanks again for your question!
      -BD Auto Pro

  35. Frankie R on October 12, 2016 at 6:10 pm

    I noticed my coolent from my reserve is disappearing constantly leaving me to fill it up. I just flushed my radiator added to new hoses and changed the thermostat. The results are still the same with mulk now on my radiator cap. I also noticed a smell of gas, could be a blown casket or engine has rust and probably needs to be replaced. What you guys think? My engine is a 5.0 1994 chevrolet silverado 1500 with over 10010 miles. should I drop a new engine in or fix the problem?

    • BlueDevil Pro on October 13, 2016 at 10:04 am

      Frankie-

      Thank you for asking about your Chevrolet Silverado. It sounds like the vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure.  To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading.  If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull.  Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.  Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system; you will need the full 32 ounce bottle for your Silverado.

      Thank you!

      -BDP

      • Walter on June 2, 2019 at 1:12 pm

        Reservoir is Full or Anti freeze Run the car take it down the road temperature comes up I had he later on come home I have read up the motor and the water seems to be pouring back into the reservoir overflow out to reservoir Why is this happening I looked for leaks the car stays at a normal temperature when running when driving does not overheat I put cool in my reservoir and last night and when I got up this morning and check if there was nothing in the reservoir

        • BlueDevil Pro on June 3, 2019 at 11:17 am

          Walter-

          It is possible that you are getting combustion/exhaust gases pumping back into the cooling system. You can use a “Block Dye Tester” to confirm whether or not that is the case.
          BlueDevil Head Gasket Sealer will still work if your vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly. Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system.

          Thank you!

          -BDP

  36. Amy on October 13, 2016 at 4:38 pm

    I have a 2004 Jeep Grand Cherokee. I am making payments on this car. I have had it maybe six months. I tried my heater and it hardly works. It will work then after awhile it will blow cold air. As I am driving I am hearing this knocking sound under my dash board. I noticed two weeks ago my Gauge was on and my thermostat stated 260. I was out of water. I haven’t put any water/cooliant in it since three months. It has always been full. Then two weeks later I noticed again, empty! I put more water in it. I did fill it up so when I cut off the car it made this gurgling sound! No leaks! I did have someone tell me it looked like some drops over my engine but, I am not certain. What can this be?

    • BlueDevil Pro on October 14, 2016 at 9:43 am

      Amy-

      Thank you for asking about your Jeep Grand Cherokee. It is possible that you are getting combustion/exhaust gases pumping back into the cooling system.  You can use a “Block Dye Tester” to confirm whether or not that is the case. BlueDevil Head Gasket Sealer will still work if your vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure.  To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading.  If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull.  Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.  Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system.

      Thank you!

      -BDP

  37. Luciano Deoliveira on October 20, 2016 at 8:10 pm

    Hi!my name is Luciano , the antifreeze is going into the engine of my ram 3500, and the engine and radiater is cold after driving 3 hours, I can even open the radiater cap wit truck running and there is no pressure and coolant is cool,can u let me know what’s happening ? Thank you

    • BlueDevil Pro on October 21, 2016 at 11:27 am

      Luciano-

      Thank you for asking about your Dodge Ram 3500. Please contact our technical support line at 888-863-0426 so that we can get a better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  38. Kate on November 6, 2016 at 9:35 pm

    OK I read all the comments. I’m having the same problems, so I will try the sealant. But where do I put it in at??

    • BlueDevil Pro on November 8, 2016 at 9:56 am

      Kate-

      The BlueDevil Head Gasket Sealer would be added directly into the radiator through the radiator cap. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

      • Kate Griffin on November 8, 2016 at 12:04 pm

        Thank you! Kate

  39. Dan on November 27, 2016 at 6:58 pm

    Hi,

    I bought Nissan Pulsar N16 2005 car recently and noticed that there is water reduction in the reservoir tank. I removed the thermostat as well now it circulates all the time. I can see rust in the radiator.

    1. After running for 10-15 min I can see bubbles in the reservoir tank.
    2. After driving for more than one hour the water overflows in the reservoir tank and the system starts to overheat (sudden rise in the heater gauge)
    3. No engine miss at all, no oil in the radiator, no water in the oil tank.
    4. Pressure test in the radiator slight pressure loss after 15 min. But no visible coolent loss. Water level reduces by 50-100 ml.
    5. Cylinder Compression test all 4 cylinders around 110.

    Can this be a fault if radiator, water pump, head gasket or anything else ?

    Highly appreciate your advice.

    Thanks in advance.

    • BlueDevil Pro on November 30, 2016 at 11:04 am

      Dan-

      Thank you for asking about your Nissan Pulsar. Based on your description, it sounds like you may be experiencing a head gasket leak. You can use a “block-dye test” to confirm whether combustion/exhaust gases are getting into the cooling system. If the “block-dye test” does not show combustion/exhaust gases as being present, we recommend looking into having the water pump replaced. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  40. Joe on November 29, 2016 at 9:23 pm

    I have a 2004 Grand Marquis Designers Edition it’s loosing engine coolant don’t know where or how but just keep refilling it & just recent it starts smoking like at least about 10-15 mins of running (White Smoke) … the longer it runs the more smoke ….. Do you have an ideal what’s causing this?

    • BlueDevil Pro on November 30, 2016 at 10:32 am

      Joe-

      Thank you for asking about your Mercury Grand Marquis. Based on your description, it sounds like you are experiencing the beginnings of a blown head gasket. We recommend using the BlueDevil Head Gasket Sealer to help treat your leak http://store.gobdp.com/head-gasket-sealer-38386/. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  41. Melanie Roenigk on December 3, 2016 at 8:54 pm

    I have a 1999 Honda Civic. It has 157k on it. I have driven in 2000 miles in the last year. It used oil, which I did not discover, until it was very low. Damn. Car was fine. Then a month later, I heard this awful metal noise under my hood, and temp gauge went up almost to the red mark. I stopped, let it cool, and drove it further, let it cool, etc. The noise stopped. The temp. gauge went back to normal. No problem. Two weeks ago, seems like it was leaking coolant.
    Engine started making marbles sound, with a squeaking, but this sound was not IN the engine.

    Two days ago, the heater stopped working, and I heard some marble sounds, and an awful metal loud noise. I was watching idle with the hood up, and the car just stopped. I went inside, and it started back up, and didn’t stall again. Yesterday, the car overheated again. Oil good. Exhaust good. Put coolant in the car, and it is leaking like sieve out of the left side of the car (when standing in front), close to where the radiator cap is. No matter how much I poured in, the more it just poured out. After I immediately poured it in, I started it, and took it down the street, engine sounded just fine, going slowly and accelerating. Temp. guage began climbing quickly, so parked it back in driveway. I think the radiator was empty, and when I filled it, the knocking stopped, and the engine was perfectly fine in operation. However, I filled the overflow last night, and it is empty tonight, before I drove the car.

    Do you know what this is?

    Thanks, Melanie
    I hope this isn’t a gasket. Sounds to me like a leak somewhere close to the radiator, but I cannot see where from underneath, because of a plastic shield meant to keep stuff from kicking up. It’d have to go on a rack. Hoses are not soft. Where the heck is this leak? It goes right through the radiator in a steady stream that is quick in flow.

    Any ideas?

    Now, the car has these marble sounds under the hood. So I stopped it immediately. A very little bit of steam was coming from the left side of the car when sitting in it. Tonight, I poured water into the radiator. It was flowing out under the car in a constant flow. So, I started up the car, it was making some noise, drove it slowly, and the engine started to sound fine. Working just as it should. I also poured anti-freeze in the overflow last night, and today it is empty.

    I have not driven the car since I parked it last night, until I put the coolant in to see if the engine would improve. It did. I am sure I have a leak in my radiator, or a hose, but I cannot tell what it is, because a plastic covering is obstructing my view. The lead is coming from the left side of the engine, but not from the engine (when looking at the car). I tried my hood up to see if fluid came out, none.

    What do you think this is? Fluids are the normal color, and no exhaust out tailpipe, except a slight amount three weeks ago.

    • BlueDevil Pro on December 6, 2016 at 12:19 pm

      Melanie-

      Thank you for asking about your Honda Accord. Based on your description, it is a little difficult to diagnose exactly where the leak is coming from. Based on your description, it sounds like you may be losing fluid a little too quickly in order to get the benefit of using the BlueDevil Head Gasket Sealer. If you are losing fluid just as quickly as you add it, it doesn’t seem like you would be able to keep the product in the system long enough in order to complete the 50 minute idle. A hard part repair may be your best option.

      Thank you!

      -BDP

  42. Mohammed Khadeer on December 14, 2016 at 12:57 am

    I change radiator upper hose pipe water pump thermostat my problem is i am losing. Anti freeze every 5 to 6 hours half.gallon and I run on high 60 to 65 miles.per hour slightly.. over heat than after one or two miles gauge go.up what do you recommend pleaseanswer

    • BlueDevil Pro on December 14, 2016 at 9:37 am

      Mohammed-

      I believe we spoke with you over the phone a couple of days ago regarding the use of BlueDevil Head Gasket Sealer. If you have any further questions please contact us at 888-863-0426.

      Our tech support team is available Monday – Friday, 8:00 AM – 5:00 PM EST.

      Thank you!

      -BDP

  43. k.ponnuraman on December 24, 2016 at 9:06 pm

    dear sir,
    green wishes, i have fiat leenia. it is now 150,000 kms. my engine coolant gone out after 100kms, after
    that i fill it with water, the heater guage is showing more than 50% temprature, every kms i filled 1 ltr water in the coolant tank, shall i clean the radiator? my driver says it is the right time to clean the radiator otherwise it will affect the engine, pls give me your good suggesstions.
    k.ponnuraman india.

    • BlueDevil Pro on January 4, 2017 at 9:28 am

      K.Ponnuraman-

      Thank you for asking about your Fiat Leenia. Based on your description, we recommend using the BlueDevil Head Gasket Sealer http://store.gobdp.com/head-gasket-sealer-38386/. As per the directions, you will be removing the thermostat and performing a cooling system flush prior to using the product.

      Thank you!

      -BDP

  44. Michael on January 26, 2017 at 10:27 pm

    My wife has 2010 Chev Traverse the temp is normal when driving but when idle temp rises doest over heat but rises field resivoir last 2days have seen no leeks could anyone give me suggestions thanks.

    • BlueDevil Pro on January 27, 2017 at 9:12 am

      Michael-

      Thank you for asking about your wife’s Chevrolet Traverse. Are you noticing a water/coolant loss? If not, you may have some debris or jellied antifreeze stuck in the system that is restricting flow and causing the vehicle to periodically overheat. If that is the case, we recommend flushing the system with the BlueDevil Radiator Flush http://store.gobdp.com/radiator-flush-00204/. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  45. DENNIS GIBSON on February 10, 2017 at 10:30 am

    i have a 2015 dodge tradesman 4×4 having to add antifreeze about every 2 days,no leaks on the ground or visible leaks from any hoses,where is it disapearing to. its a 6.7 ltr diesel.

    • BlueDevil Pro on February 10, 2017 at 2:00 pm

      Dennis-

      Thank you for asking about your Dodge Tradesman. Some other possible places the water/antifreeze may be disappearing to are: Into your engine oil, smoke/water vapor coming from the exhaust, or maybe getting back into the cylinders. Please contact our technical support line at 888-863-0426 so that we can get a better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  46. Kevin on February 24, 2017 at 10:34 pm

    I have a 2013 Dodge Journey 4 cylinder that is slowly losing coolant. The engine warms up to 3/4 on the Guage when sitting in traffic or idling but goes back to normal when driving. I have also noticed that when the coolant level is at full there are no problems. As it gets low I notice that the passenger side heat doesn’t warm up. Also, after driving I can smell some coolant when I am outside the car, never inside. I don’t see a leak anywhere and it takes about 2 to 3 weeks for the coolant to get to the low level line on the reseviour. Where cold it be going? Will one of your products help? How do I use it?

    • BlueDevil Pro on February 27, 2017 at 9:05 am

      Kevin-

      Thank you for asking about your Dodge Journey. It is possible that you are getting combustion/exhaust gases pumping back into the cooling system.  You can use a “Block Dye Tester” to confirm whether or not that is the case. If that is the case, we recommend using the BlueDevil Head Gasket Sealer (http://store.gobdp.com/head-gasket-sealer-38386/).
      BlueDevil Head Gasket Sealer will still work if your vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure.  To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading.  If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull.  Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.  Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system.

      Thank you!

      -BDP

  47. Krystal on February 26, 2017 at 8:49 pm

    I have a 2008 dodge avenger and out of no where my car thermometer went up to about 75% once I got off the freeway. I pulled over to the side and called my brother and told me to turn on my heater on full blast if I wanted to try and drive it home so I don’t leave it on the side of the road which I did and notice my heater wasn’t working and was shooting out cold air. When I parked my car at my place and turned my car off, my car let out a cloud of smoke coming from my hood. later on that night I went to check my oil and notice first that there was nothing in my coolant tank and second no oil in my car. I had a friend of mine check my car the next morning. Came to realize that no matter how much coolant we put into the coolant tank, it leaks out instantly like a waterfall. My friend was not able to detect where the leak is coming from. Do you have any idea what my problem could be and would your product help me at all?

    • BlueDevil Pro on February 27, 2017 at 10:12 am

      Krystal-

      Thank you for asking about your Dodge Avenger. If you are losing water/coolant just as quickly as you add it, unfortunately, the leak you have may be a little too extreme for the BlueDevil Head Gasket Sealer to be effective. A hard part repair may be your best option.

      Thank you!

      -BDP

  48. breinne willingham on March 16, 2017 at 4:53 pm

    My 2008 G6 gxp is losing coolant. The oil is not milky and there are no visible leaks, not on ground either. I’m not sure how to go about finding the problem. Help?

    • BlueDevil Pro on March 17, 2017 at 9:08 am

      Breinne-

      Thank you for asking about your Pontiac G6. Please contact our technical support line at 888-863-0426 so that we can get a better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  49. Jonathon Solomon on March 21, 2017 at 6:58 pm

    My 1998 Chevy Malibu engine coolant is always empty and there isn’t a leak. I checked the oil, and the oil is milky. Is that where my coolant going, and how to stop it from going in there. I don’t have the funds to replace the gasket or the motor. What can I do to stop it.

    • BlueDevil Pro on March 22, 2017 at 10:23 am

      Jonathon-

      Thank you for asking about your Chevy Malibu. Based on your description, you would be a great candidate for the BlueDevil Head Gasket Sealer (http://store.gobdp.com/head-gasket-sealer-38386/). You should change your oil before and after the BlueDevil process.

      Thank you!

      -BDP

  50. Nicholas on April 4, 2017 at 5:01 pm

    Good evening, suddenly my Toyota Matrix XR 2003 is losing coolant without any form of leaking. I have taken time to trace the leak but to no avail and yet my coolant keep drying. Pls what should I do? Thanks

    • BlueDevil Pro on April 5, 2017 at 9:12 am

      Nicholas-

      Thank you for asking about your Toyota Matrix XR. Are you losing a lot of coolant or is it more of a slight leak. Is the vehicle overheating at all? Please contact our technical support line at 888-863-0426 so that we can get a better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  51. Paula Frazier on May 16, 2017 at 7:18 pm

    I have a 2004 Volvo V40 Wagon (Turbo). I took it in to the Volvo shop last week and had them add coolant (the reservoir was completely empty). They filled it took it for a drive, brought it back, added more coolant, took it for another drive and then handed the keys back to me.

    Today (about a week later), my husband checked, and the reservoir is dry. No leaks on the ground, my car isn’t overheating. What should I do before taking it back to the mechanic?

    • BlueDevil Pro on May 17, 2017 at 8:33 am

      Paula-

      Thank you for asking about your Volvo V40. Are you noticing any other symptoms, like water getting into the oil or smoke out of the exhaust pipe? Is the engine idling roughly at all or are you experiencing a misfire? Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  52. Carol Haefele on May 30, 2017 at 11:31 am

    I have a 2004 Dodge Durango V8 4.7L engine. I recently had the transmission rebuilt and they also replaced the thermostat. I have now noticed that I am losing coolant but have no leaks. Had to pull over on an emergency because it was hot and had no coolant in it. Let it cool down and added coolant and made it home. Since then we have been checking it and just can’t seem to find a pattern. Sometimes I can drive no problems other times I might go down the road and need to add coolant. Husband thinks a/c may have something to do with it since we drove about an hour with no a/c and coolant still full and on our way there we were using a/c and needed to add coolant. We are thinking of replacing the thermostat again since it did overheat that once but don’t believe that will make a difference. We live in Florida where the weather is always hot. Any recommendations would be appreciated. Thank you Carol

    • BlueDevil Pro on June 5, 2017 at 11:57 am

      Carol-

      Thank you for asking about your Dodge Durango. Based on your description, we would recommend using the BlueDevil Head Gasket Sealer (http://store.gobdp.com/head-gasket-sealer-38386/). As long as the vehicle will maintain idle for a full 50 minutes, and you are not losing more than about a quart of water/coolant during that 50 minutes, you would be a great candidate for the product. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  53. Jenny on July 26, 2017 at 4:59 pm

    Hi, I have a 2006 vw Passat. I car leaked out a full Reservoir overnight. After pouring in coolant to min. And turning the car on, I can see coolant dripping from the bottom. I think it’s the radiator but the way the car is designed, u can’t see the radiator. I want to know if I can use any of your products and if it’s safe to pour in the reservoir since you can’t get directly to the radiator.

    • BlueDevil Pro on July 27, 2017 at 9:27 am

      Jenny-

      Yes, the BlueDevil Radiator & Block Sealer (http://store.gobdp.com/radiator-block-sealer-00205/) would be able to seal the leak on your VW Passat. If your vehicle only has a reservoir/overflow rather than a radiator cap, instead of pouring BlueDevil through the reservoir/overflow, with the car off and engine cold you should disconnect the top radiator hose and add the product there; do not pour it into the overflow bottle. Once it has been added reconnect the hose and start the idle from that point.

      Thank you!

      -BDP

  54. Tammy on October 14, 2017 at 6:17 am

    I have a 2007 Toyota Rav4 2.2 Diesel SUV, it is loosing coolant with no visible leaks. I have to fill coolant so once every 2 weeks.
    The vehicle does not overheat and the radiator fan does come on very quickly.

    • BD Auto Pro on October 16, 2017 at 9:21 am

      Tammy,

      Thanks for your question about your 2007 Toyota Rav4. It is possible that you have a blown head gasket and that is where the coolant is going, however, without any other indications it’s more likely that you have a coolant leak somewhere that is only leaking when your SUV is warm so the coolant comes out as steam and isn’t leaving any trace. You could try adding UV dye to your coolant and checking for leaks that way to see if you can find the source.

      Thanks again for your question!
      -BD Auto Pro

  55. Tiffany on November 2, 2017 at 12:37 pm

    i just wanted to tell you (& others) how impressed and appreciative i am for this blog post! i am a woman who has always paid a mechanic to ‘just fix it’ and have never been interested in the details of what work is done to my vehicle, or even capable of understanding what my mechanic tried to explain. now out of nece$$ity, i need to pinpoint my problem. in order to do that i need to understand quite a bit more. this post is so well written that i am immediately able to comprehend what my cooling system does & why. the info-graphic is also very useful. you answer questions i didn’t know i need to ask and you explain why you’re telling me extra info. when i scrolled thru the first few comments, i saw post after post by women who sound like me: intelligent, interested, and probably not at all mechanically inclined. in fact i have never seen so many posts by women on any of the forums i have visited over the years (not trying to sound sexist). thank you so much for this post and for explaining what your products are and what they do and if they’ll work for my problems. (I’d previously been reprimanded for putting a 99cent sawdust product in my radiator & didnt understand why until i read that yours is non-granular & how it works). sorry for the long post but i felt i had to give you a HUGE THANK YOU!

  56. Jeremy on December 3, 2017 at 12:24 am

    2003 Chrysler Pacifica- Brandnew water pump & radiator installed & then 2 months later car overheated & confirmed blown head gasket from machanic. Used B.D. head gasket sealer product, flushed coolant, & replaced thermostat. Car has ran fine for 2 week around town & short distances only. Overheated today. Reservoir was empty. Added coolant, heat came back on & the car made it 20 miles back to the house without overheating. I don’t see any visible leaks, but I do still smell a sweet smell when the car is running. Wondering where my coolant is going if there are no visible leaks & if it possible that there is still a small leak at heads even after using Blue Devil. If so am I loosing the coolant through the exaust? Would a second Blue Devil Headgasket Sealer treatment be helpful? Thank you in advance for your input.

    • BlueDevil Pro on December 4, 2017 at 12:44 pm

      Jeremy-

      Thank you for asking about your Chrysler Pacifica. It is possible that you are getting combustion/exhaust gases pumping back into the cooling system and that your water/coolant is getting into the cylinders.  You can use a “Block Dye Tester” and a compression test to confirm whether or not that is the case.
      BlueDevil Head Gasket Sealer will still work if your vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure.  To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading.  If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull.  Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.  Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system.
      Please contact our technical support line at 888-863-0426 so that we may assist you in receiving a replacement bottle.

      Thank you!

      -BDP

  57. Joy Ann Billiot on April 2, 2018 at 9:30 am

    I have a 2004 crysler pacifica and I noticed that if the car idles awhile that the temperature will rise and this morning I had to add water to the reservoir I saw steam come up from behind the reservoir any ideas?

    • BlueDevil Pro on April 2, 2018 at 10:46 am

      Joy-

      Thank you for asking about your Chrysler Pacifica. How quickly are you losing water/coolant? Have you noticed any other symptoms, such as water/coolant getting into the oil or smoke/steam coming from the exhaust? Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

      • Joy Ann Billiot on April 3, 2018 at 6:13 pm

        Added water to Reservoir this morning had water but it was below the cold fill line also had to add water this evening no water in the oil or exhaust I saw steam coming up from behind the reservoir.

        • BlueDevil Pro on April 4, 2018 at 9:00 am

          Joy-

          Based on your description, it doesn’t sound like you have any of the tell-tale signs of a blown head gasket. Have you or a certified ASE mechanic verified where the leak is coming from? If not, they may be your next step. Feel free to contact our technical support line at 888-863-0426 with any other questions.

          Thank you!

          -BDP

  58. Bill Miller on August 4, 2018 at 1:40 pm

    I have a 97 Pontiac Bonneville with a 3.8L. The car was given to me about 5 years ago and ran like a champ, but one thing I noticed was whoever had the car before me put a PVC elbow on the one tensioner, crazy, but it held. I had the car down for about 8 months because I needed brake lines. Now that it’s back on the road I began having pressure problems but a new 16Lb cap solved that. I also put a new tstat in and it seems to run fine but when I turn it off it drains the reservoir and the rad is full. Cardboard under car shows no leaks. There is no white smoke, misfiring or any other problems, in fact, the car runs fine it just drains the reservoir. What could be causing this?

    • BlueDevil Pro on August 6, 2018 at 9:45 am

      Bill-

      Thank you for asking about your Pontiac Bonneville. Based on your description, it would be difficult to say exactly where the leak is coming from. It does not seem like you have any of the tell-tale signs of a blown head gasket or warped/cracked heads, except for the loss of water/coolant and pressure building up in the system. We recommend using a Block-dye test to test for combustion/exhaust gases being present in the cooling system. Doing so will give yourself a better idea of what the issue is. If the results don’t show any carbon gases being present, you may want to bring the vehicle in to a certified ASE mechanic for a proper diagnosis.

      Thank you!

      -BDP

  59. Jamie Poulos on September 14, 2018 at 2:57 pm

    I have an 03 Chevy Malibu, the antifreeze in it will run low, but never completely gone…We go thru about 2 gallons of it a week. The cars runs fine and had no issues other then going thru antifreeze fast and on occasion it runs a little warm but once we start moving the temperature goes back down. What could be the problem?

    • BlueDevil Pro on September 17, 2018 at 9:14 am

      Jamie-

      Thank you for asking about your Chevy Malibu. Are you noticing any water/coolant dripping to the ground or are you experiencing any other symptoms? Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  60. roderick on December 30, 2018 at 10:27 am

    hello I have a 2006 buick lacrosse and my tank stays with antifreeze in it but my radiator losses antifreeze,no leaks no nothing thinking something may be clogged up what would you recommend??

    • BD Auto Pro on December 30, 2018 at 11:28 am

      Roderick,

      Thanks for your question about your 2006 Buick Lacrosse! First, If your radiator is low on coolant but your reservoir stays full then we would recommend replacing your radiator cap and checking your radiator for cracking in the plastic around the radiator cap and where the hose connects to the radiator from the reservoir. Next, we would recommend getting a pressure test done on your cooling system to see if it is tight and completely sealed. Our guess would be that there is a leak allowing air into the radiator while your car is cooling down and that it’s high enough in your system that it is above your coolant level when the coolant is low in the radiator.

      Thanks again for your question!
      -BD Auto Pro

  61. John on January 3, 2019 at 8:37 pm

    I put coolant in my truck and literally twenty minutes went by and it all ran out. Would your product fix that?

    • BlueDevil Pro on January 4, 2019 at 8:24 am

      John-

      Unfortunately, it sounds like you are losing coolant a little too quickly for the product to be successful. In order to get the benefit of using BlueDevil, the vehicle would need to be able to maintain idle for a full 50 minutes without overheating or stalling out, and you shouldn’t be losing more than about a quart of water/coolant during that 50 minute run. Based on your description, a hard part repair may be your best option.

      Thank you!

      -BDP

  62. brandon sebastian on February 4, 2019 at 8:37 am

    i have a 2001 chevy Tahoe that is losing coolant no visible leaks or smoke cant smell anything nothing in oil I don’t know where it is going truck does have 253k miles and runs strong, it does not over heat unless I have a/c on and idling in summer only.

    • BlueDevil Pro on February 4, 2019 at 9:21 am

      Brandon-

      Thank you for asking about your Chevy Tahoe. How quickly are you losing coolant? Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  63. Charles Petsko on May 12, 2019 at 11:41 pm

    I have a 1997 lincoln mark 8 4.6 32 valve v8 and been having a coolant leak even if i pour the coolant into the resevoir it slowly empties itself even if you don’t start the car then when you start it the other day it ran for 45 minutes to an hour and it never overheated but just poured white smoke out both tailpipes to where you couldn’t even see behind the car most of the time and seems like the oil is watered down i don’t have alot of money to do a costly repair and its the only vehicle me and my family have do you have any suggestions

    • BlueDevil Pro on May 13, 2019 at 10:05 am

      Charles-

      Thank you for asking about your Lincoln Mark VIII. Based on your description, unfortunately, it seems you have the tell-tale signs of a blown head gasket. We recommend using the BlueDevil Head Gasket Sealer (32 oz. yellow label). As long as the vehicle will maintain idle for a full 50 minutes without overheating or stalling out, and you aren’t losing more than about a quart of water/coolant during that 50 minute run, you would be a good candidate for the product.

      Thank you!

      -BDP

  64. Shaun Meyer on May 20, 2019 at 8:07 am

    My car is loosing coolant.
    Immense pressure is applied to overflow tank when driving, and pressure released when opening cap,also small bubbles seems like it is entering my overflow tank, and exhaust smells a little sweet.
    Will your product help for me?

    Could this be signs of a cracked head gasket?

    • BlueDevil Pro on May 20, 2019 at 9:46 am

      Shaun-

      Based on your description, it does sound like it could be the symptoms of warped/cracked heads. It is possible that you are getting combustion/exhaust gases pumping back into the cooling system. You can use a “Block Dye Tester” to confirm whether or not that is the case.
      BlueDevil Head Gasket Sealer will still work if your vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly. Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system.

      Thank you!

      -BDP

  65. Patricia on July 1, 2019 at 12:22 am

    UP DATE:
    I found out from Auto Zone that the code for my problem is P0171.
    So may question is am I a good candidate for this treatment.

    • BlueDevil Pro on July 1, 2019 at 9:25 am

      Patricia-

      Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  66. Jordan Millberg on July 10, 2019 at 10:34 pm

    My boyfriend just bought a 2001 Jeep Cherokee Sport. We hadn’t had any issues with it until today. He was running a diagnostic on it so it was idle, but the it overheated he heard bubbling and then liquid just poured from under Neath just behind the front passenger tire. He found out there was no coolant so we added some and then about 5 minutes later it started leaking again.

    • BD Auto Pro on July 10, 2019 at 11:32 pm

      Jordan,

      Thanks for your question about your 2001 Jeep Cherokee Sport. On that SUV the most likely source for a coolant leak from behind the passenger side front tire would be a leak from the heater core hose. There should be 2 hoses about 1/2″ – 1″ in diameter running into the firewall where the hot coolant is carried to the heater core to heat to the cabin of the vehicle. If one of these hoses has cracked or burst it would cause coolant to leak in that area. You can try using a cooling system pressure tester to pressurize the cooling system while the truck is cold to locate the source of the leak.

      Thanks again for your question!
      -BD Auto Pro

  67. Uzair Baig on October 30, 2019 at 9:57 pm

    Hey good evening,

    I recently bought a used 2012 Ford Focus and noticed that the Coolant seems to be disappearing quickly. Its usually full for a couple of days and then back down below the Min mark. There aren’t any visible signs of a coolant leak however there’s this thin gray smoke that comes out of the passenger side near the headlight when the car has been running for a while. Not sure if it’s related. What do you think would be the reason why

    • BlueDevil Pro on October 31, 2019 at 8:49 am

      Uzair-

      Thank you for asking about your Ford Focus. Is the vehicle overheating at all? If there is a leak in the coolant overflow tank, it can cause occasional cases of steam coming from under the hood. It would be more of a billowing smoke however, not thin like you’ve described. Gray smoke can indicate oil burning, meaning oil is leaking from one of the components. If you haven’t done so already, we’d recommend bringing the vehicle to a shop for a proper diagnosis.

      Thank you!

      -BDP

  68. Blayton J on December 26, 2019 at 10:52 pm

    Hey I have a 2007 impala. Seems like I’m getting a slow single drip on the ground about every 5 seconds. Oil is fine . no smoke. It’s running without overheating. I’ve done well at keeping an eye on my fluids so idk if that’s why it hasn’t overheated? Anyways was seeing what product would u recommend? It should be able to do the 50 min idle without issue.

    • BlueDevil Pro on January 2, 2020 at 10:24 am

      Blayton-

      Thank you for asking about your Chevy Impala. Are you seeing where the drip is coming from? Based on your description, it’s possible a loose hose connection is the cause for your slow drip. We would recommend having the vehicle diagnosed or having the leak point located in order to better assess the situation.

      Hope this helps!

      -BDP

  69. lul on September 29, 2020 at 8:39 am

    Hello, hope you are well.

    I am a user of a golf 7, and one problem that we are not solving is, every 10 km we have to fill it with water because it consumes it and we do not find the place where it leaks, and they are not able to find the problem in the car mechanic, some say it is mixed with gasoline and smoked out through the exhaust.

    I hope to get an answer from you

    Regards,

    • BlueDevil Pro on September 30, 2020 at 7:54 am

      Lul-

      Thank you for asking about your Volkswagen Golf. Are you saying that after 10 km, the vehicle is overheating because it has lost too much water? Are you noticing any other symptoms such as the vehicle idling roughly or lack of power from the engine? Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  70. Lawonder cribbs on December 3, 2020 at 8:35 pm

    I have a 2006 Ford fushion ..3.0 engine and I will have to put antifreeze in it everytime I move the car .and it’s a leak in the front middle part of the car ..would the blue devil help my car ?

    • BlueDevil Pro on December 4, 2020 at 8:30 am

      Lawonder-

      Thank you for asking about your Ford Fusion. BlueDevil is intended for leaks that are seeping or lightly dripping. Based on your description, it sounds as though you may be losing antifreeze a little too quickly for the product to be effective. Replacing the leaking component may be your best option.

      Thank you!

      -BDP

  71. mike johnson on December 27, 2020 at 6:11 pm

    I have a 2006 Nissan Altima im the only owner and I have taken care of it and now for the last 2 months its using a quart of oil every 2 weeks don’t know where its going and never had this problem and at the same time it started losing antifreeze neither has any leaks or no smoking no water in the oil anti freeze is clean no hoses bad could this be a head gasket problem

    • BlueDevil Pro on December 28, 2020 at 10:27 am

      Mike-

      Thank you for asking about your Nissan Altima. Have you noticed if water/coolant is getting into the oil? Are you seeing white smoke/steam coming out of the exhaust pipe? Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  72. Kevin on January 7, 2021 at 11:05 am

    I have a 2005 Toyota Highlander with a 3.3L engine. There are no visible leaks, nothing is cracked or damaged, I replaced the radiator cap already, there is no coolant in the oil, oil level stays perfect, there is no sweet smell or dampness on the floor, however, I am using about a gallon of coolant every 2-3 weeks. It seems to go low faster if I need to accelerate more quickly. I have always maintained my fluids regularly do you have any idea where else the coolant could be going? Thanks

    • BlueDevil Pro on January 8, 2021 at 10:18 am

      Kevin-

      Thank you for asking about your Toyota Highlander. Have you noticed a lack of power or engine performance? Is the engine idling roughly at all? Have you noticed a bubbling/boiling over of coolant in the reservoir? If so, you may have combustion/exhaust gases pumping into the cooling system. You can use a “Block Dye Tester” to confirm whether or not that is the case.
      BlueDevil Head Gasket Sealer will still work if your vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly. Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system.

      Thank you!

      -BDP

  73. Mike on January 14, 2021 at 12:58 pm

    I have a 2000 dodge grand caravan sport with a small coolant puddle on top of the transmission and a small puddle under the vehicle I smell antifreeze and it smokes but doesn’t over heat will your product work it’s a drip not a running of coolant

    • BlueDevil Pro on January 15, 2021 at 11:19 am

      Mike-

      Thank you for asking about your Dodge Grand Caravan. Based on your description, we recommend using the BlueDevil Head Gasket Sealer for your antifreeze leak. Once the product seals, it would be a permanent seal.

      Thank you!

      -BDP

  74. Hudson Baker on July 30, 2021 at 9:00 am

    My 2002 Buick keeps running out of coolant we replace the coolant reservoir because we was told it had a Crack in it and that’s why the coolant was dripping out but we Bought a new one and we’re still having the same issue.

    • BlueDevil Pro on July 30, 2021 at 10:28 am

      Hudson-

      Thank you for asking about your Buick. Have you noticed a bubbling/boiling over of coolant into the reservoir? Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  75. Micheal Marsh on July 30, 2021 at 10:40 pm

    Have a 2008 Jeep Grand Cherokee I bought used. After changing spark plugs I kept getting a check engine code of 0300 a misfire in cylinder 3. Also the Jeep was using a lot of coolant to the point of going bone dry causing the heat gauge to redline. I discovered your cracked head product in wal-mart. Followed the directions and the check engine light went off, it uses less coolant, but still some, and I do notice a larger than normal puddle under the car, so when I run these checks I will definitely be using the product mentioned here. I would like to say how pleased I was with your product and thank you for it doing what it’s marketed to do.

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