Signs of a Blown Head Gasket

#driveyourlife

signs of a blown head gasketHaving a blown head gasket is a big deal.  It’s such a big that some people will refer to it as a blown motor, or consider a repair so major that it often isn’t worth completing and would be better to just have a whole new motor installed.  In some cases, this can unfortunately be true.  If you continue to operate your vehicle with a blown head gasket you run the risk of causing more damage in just a few miles.

When your head gasket blows it will allow engine coolant to escape either out of your engine as an external leak or into the combustion chamber of your vehicle.  In either case, the escape of the hot coolant through the gap in the gasket can cause pitting or deformation of your cylinder heads or engine block.  If you were simply to replace the broken head gasket with a new gasket your engine would still not be sealed properly as the pits and warping of the engine block or head would still allow coolant to leak past the new gasket.  In some cases, you can remedy this problem by machining the engine block and cylinder heads to remove the pits and make sure they are flat and smooth.  This process is not only expensive and time consuming, but there is only a certain amount of machine work that can be done before the block or heads are not usable anymore and your vehicle will need a new engine.

To make sure you do not get to the point of this kind of damage, you need to know the signs of a blown head gasket.  Whenever the head gasket is blown, the problem is leaking coolant.  Coolant either leaks past the head gasket out of the engine or past the head gasket into the cylinder and combustion chamber.

If you have an external leak you will notice coolant leaking from in between your engine block and the head.  This usually will happen just below the exhaust manifold or the intake manifold.  You may notice the leak while the vehicle is not running but it will most likely be noticeable when your engine is running and warmed up as steam spraying out from the motor.

signs of a blown head gasketIf you have an internal leak where coolant is leaking into the cylinder and combustion chamber, it can be more difficult to diagnose.  As the coolant leaks into the hot combustion chamber it will quickly evaporate.  If the leak is large enough you will notice white, sweet smelling smoke coming from your tail pipe, but if it is small, your exhaust may look normal.  Also, if the leak is large enough, you may get water in your oil as the coolant seeps past your piston rings or if there is a gap in the gasket between an oil passage and the water jacket.  Water in your oil will look milky or white around the underside of your oil cap.

The last sign of a blown head gasket with an internal leak is to look for the presence of exhaust gas in your coolant.  If there is a hole in between your combustion chamber and the cooling jacket in your head gasket, each time the piston pushes exhaust gas out of the combustion chamber into the exhaust system some exhaust gas will also be pushed into your cooling passage.  With a big enough leak you will find bubbles in your coolant overflow bottle or in your radiator.  With a small leak, there will still be some exhaust gas present in your coolant and you can get a chemical test kit to test for the presence of those exhaust chemicals.  This test, available at most parts stores, is the best and most reliable way to test for a blown head gasket.

Now that you know the signs of a blown head gasket you can catch it quickly before you do permanent damage to your engine.  If you notice a small leak it is also possible to fix it without ever removing your head gasket.  BlueDevil Pour-N-Go Head Gasket Sealer is an easy to use product designed for small head gasket leaks.  BlueDevil Pour-N-Go Head Gasket Sealer is easy to use even if you’re not mechanically inclined and can save you a significant amount of time and money.

BlueDevil Pour-N-Go Head Gasket Sealer

For more information about BlueDevil Pour-N-Go Head Gasket Sealer, visit our information page here: Pour N Go Head Gasket Sealer

To purchase BlueDevil Head Gasket Sealer you can visit any of our partnering local auto parts store like:

  • AutoZone
  • Advance Auto Parts
  • Bennett Auto Supply
  • CarQuest Auto parts
  • NAPA Auto Parts
  • O’Reilly Auto Parts
  • Pep Boys
  • Fast Track
  • Bumper to Bumper Auto Parts Specialists
  • S&E Quick Lube Distributer
  • DYK Automotive

 

Picture provided by:

signs_of_a_blown_head_gasket.jpg – By Tony Harrison – Licensed By Creative Commons Share Alike 3.0 Via Flickr – Original link
blown_head_gasket.jpg – By Irontite – Licensed by Creative Commons Share Alike 3.0 – Original Link

153 responses to "Signs of a Blown Head Gasket"

153 Comments

  1. Rahman on April 20, 2015 at 11:11 am

    I used two 16oz BlueDevil Pour-N_Go yesterday as described. After four hours still I am experiencing very… slowly dripping water underneath the engine. My car is Chevy Impala 3.4L V6 and 2001 model. I never used sealant for any reason for my car because I love my car. Still I drive 110/day miles and four days a week. I did not touch the car after BlueDevil treatment. Please suggest me about my car.

    • BlueDevil Pro on April 20, 2015 at 1:04 pm

      Rahman-

      Please contact our tech support team at 888-863-0426 so that we may discuss your vehicle in more detail.

      Thank You!

      -BDP

      • Devon on September 12, 2016 at 12:07 am

        I have a 2001 honda accord it started overhearing and i found oil in the coolant hose would this product work to fix it?

        • BlueDevil Pro on September 12, 2016 at 9:41 am

          Devon-

          Thank you for asking about your Honda Accord. The BlueDevil Head Gasket Sealer is only intended for water/coolant leaks. Unfortunately, we do not manufacture a product for oil leaks into the coolant/water. A hard part repair may be your best option.

          Thank you!

          -BDP

      • Gus on August 23, 2021 at 12:47 pm

        What if car had blown gasket and owner redid the head gaskets lifers everything! Put engine back together and as adding coolant before the first start it just leaked coolant by exhaust mandifold? Did we do the work for nothing or can we use sealant and try the first start?

        • BlueDevil Pro on August 24, 2021 at 8:23 am

          Gus-

          How quickly is the vehicle losing coolant? In order to get the benefit of using the BlueDevil Head Gasket Sealer, the vehicle would need to be able to 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. If you can meet those general requirements, it would be worth trying the product.

          Thank you!

          -BDP

    • Todd on June 15, 2015 at 9:21 am

      My 2009 3.7 Jeep Commander has a minor misfire (diminishes as the engine warms) and an unexplained coolant leak resulting in mild overheating – common sign of bad gasket. I used Pour-N-Go 2 days ago and the misfire persists (maybe stronger now). Is this excess moisture still trapped in the chamber? No white smoke and no overheating anymore.

      • BlueDevil Pro on June 26, 2015 at 2:22 pm

        Todd-

        Yes, it is fairly likely that there is still excess moisture due to the leak you had previously had. After running the days for a few days the misfire code should go away, if it has not already. Based on the fact that the white smoke and overheating have been eliminated it sounds like the BlueDevil was able to seal the head gasket leak(s).

        Feel free to contact us with any further questions.

        Thank You!

        -BDP

        • Alok on November 4, 2015 at 4:32 pm

          Last 2 weeks I am seeing my 2002 Nissan Altima 2.5S , check engine light On. I went to Mechanic shop and after diagnosis the code says P0300 (Multiple MisFire) they are expecting the Head Gasket is Bad and to replace they are charging $1800. I am little bit doubt about this and looking for some solution to fix this. My car is running good. In cold Morning vehicle engine shudder for few seconds and then become normal. I am not very sure about the coolant label going down as it shows normal to me.
          I heard about the “BlueDevil Pour-N-Go head Gasket sealer” Not sure whether I can use this or not. Any suggestion is appreciated.

          • BlueDevil Pro on November 5, 2015 at 9:56 am

            Alok-

            Yes, you can use the BlueDevil Pour-N-Go Head Gasket Sealer for the situation you have described. Based on your description, it sounds like you are referring to possibly 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 a low compression reading. If you are not sure which one that is, you may pull all of the spark plugs and will sometimes 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.

            Thank you!

            -BDP



    • Shawn on January 20, 2021 at 11:44 am

      It also can be a freeze plug engine block

  2. Delores Lyon on August 25, 2015 at 11:36 am

    Thanks for sharing this advice on diagnosing a blown head gasket in the car. I had no idea that exhaust gas in your coolant is a sign of a blown gasket. It’s nice that you can get a chemical testing kit to test for that exhaust gas too– I would definitely not be able to tell if there was gas just by using my eyes!

  3. Maria Martinez on November 12, 2015 at 8:45 am

    Hello i have a 1999 Chrysler 300M it has been blowing white smoke out of the exhaust and there appears to be fuel leaking out of the exhaust as well. Can i still use the blue devil head gasket product?

    • BlueDevil Pro on November 17, 2015 at 12:56 am

      Maria,

      Thanks for your question about your 300M. The white smoke does sound like a blown head gasket. Hopefully what appears to be fuel leaking is simply condensation mixed with exhaust gases. If you do have fuel leaking, you should take your car to a mechanic as it is not safe to start. if you don’t have fuel leaking, then yes BlueDevil Head Gasket Sealer (available here: http://store.gobdp.com/head-gasket-sealer-38386/) will be able to stop your leak and get you back on the road.

      Thanks again for your question!
      -BD Auto Pro

  4. A. Jones on December 26, 2015 at 7:23 pm

    Hello, I have a 2002 Isuzu Axiom with a 3.6 V6 engine. The radiator cracked when my wife was on the way home from a friends house and she didn’t notice the vehicle over heating until she was home. I replaced the cracked radiator with a new one and also replaced the thermostat. After these repairs I was loosing coolant and the vehicle would start to overheat within driving less then 5 miles. After some research online I thought this may be a blown head gasket. I could not find any leaks on the outside of the engine and had no oil in the coolant, or coolant in the oil. I had someone suggest trying the the blue devil poor and go sealant. I have used 2 of the 16 oz bottles at about 2 weeks apart, followed the directions to the letter. I have seen a large improvement in the operation of the vehicle but I still appear to be loosing coolant and the vehicle will overheat after around 30 mins of driving. I still am not finding any location on the outside of the engine that I am loosing coolant. I still do not see any oil in the coolant system or coolant in the oil. Not sure where to go from here.

    thank you

    • BlueDevil Pro on January 7, 2016 at 5:51 pm

      Thanks for your question about your 2002 Isuzu Axiom. Based on your description, it sounds like you do have a blown head gasket. Overheating often causes blown head gaskets and the fact that the BlueDevil Pour-N-Go helped the overheating issue leads us to believe that is your problem. The next thing we would recommend is doing a compression check on all 6 cylinders. If 1 or 2 of cylinders reads low then you can assume you do have a blown head gasket in that cylinder. The hole may be too big for the 16 oz size bottle and you may need to use BlueDevil Head Gasket Sealer, a more concentrated formula that can seal leaks in cars with larger cooling systems like yours. You can find BlueDevil Pour-N-Go and directions for use here: http://store.gobdp.com/head-gasket-sealer-38386/.

      Thanks again for your question!
      -BD Auto Pro

    • Lauren Glasenapp on March 19, 2021 at 12:26 pm

      I have an 04 PT Cruiser showing obvious signs of a bad head gasket since there are almost definitely combustion gases in my radiator. I pulled all of the spark plugs to see which cylinder was leaking. There were no white crystalline deposits, however at least 3 of my spark plugs were very wet when I pulled them out. I can’t run Blue Devil through my system with the car idling with no spark plugs in, so what do I do?

      • BlueDevil Pro on March 19, 2021 at 3:35 pm

        Lauren-

        Thank you for asking about your PT Cruiser. If multiple cylinders are getting a leak or it is hard to tell which spark plug it is based on looking at them, you may want to have a compression test performed. Then, you would remove the spark plug from the cylinder with the lowest compression reading. Do this in addition to the directions on the bottle to give yourself the best chance of this working properly.

        Thank you!

        -BDP

  5. amos alufayi on January 9, 2016 at 8:34 am

    hi i have a same problem of overheating. there is no leaks no oil in the coolant, but there is small amount of dirty water comes from the tail pipe. type of a car ford bantam bakkie 1992 model.

    • BlueDevil Pro on January 12, 2016 at 3:58 pm

      Amos-

      Please contact our tech support team at 888-863-0426 so that we can gather a little more information about your vehicle and be better able to make the best recommendation.

      Feel free to contact us with any questions.

      Thank you!

      -BDP

  6. Mark on March 7, 2016 at 12:12 pm

    I have a 1998 GMC Jimmy is leaking coolant into oil is it safe to try blue devil. And if so how

    • BlueDevil Pro on March 8, 2016 at 10:18 am

      Mark-

      Thank you for asking about your GMC Jimmy. Based on your description, we would recommend using the BlueDevil Head Gasket Sealer (32 oz yellow label). You would want to change the oil before and after the BlueDevil process. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  7. Jeff L. on April 3, 2016 at 5:44 pm

    Hi…
    I own a 1984 Buick Electra park avenue 4 Dr sedan with a 307 CI motor (5.0) my mechanic told me that the antifreeze is all leaking out of the exhaust y pipe bad!! Does this mean the engine block is cracked orva head gasket?? I love the car too much! I’m gonna try the blue devil sealer… See if that fixes the symptom… But if the motor is that bad.. I’m getting another one! Thanks!!

    • BlueDevil Pro on April 5, 2016 at 2:12 pm

      Jeff-

      Thank you for asking about your Buick Electra. As long as you are not losing water/coolant too quickly, and the vehicle will maintain idle for a full 50 minutes, without overheating or stalling out, you would be a good candidate for the BlueDevil Head Gasket Sealer. Feel free to contact our technical support line at 888-863-0426 with any questions.

      Thank you!

      -BDP

  8. Jas Hennessey on April 6, 2016 at 5:12 am

    I have a 1991 Honda Civic and am experiencing the bubbling coolant from the radiator…it’s just real small pin head sized bubbles that appear when the engine is running. The car only overheats at highway speeds…as soon as I get off and hit a service road it falls back down (temp needle). Is that a bad combustion chamber seal in the head gasket and will your product work for me?

    • BlueDevil Pro on April 6, 2016 at 8:54 am

      Jas-

      We do recommend using BlueDevil Head Gasket Sealer for your Honda. It sounds like the vehicle may be 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; you will only need 8 – 10 ounces for your Honda Civic based on its cooling capacity.

      Thank you!

      -BDP

  9. Kalob Przybylinski on April 12, 2016 at 11:10 pm

    Hello. I have a 2000 Pontiac Grand Am 3.4L would I need the 16FL bottle of head gasket sealer or the 32FL bottle?

    • BlueDevil Pro on April 13, 2016 at 8:46 am

      Kalob-

      Based on the cooling system capacity of your Pontiac Grand Am, you will need 16 ounces of BlueDevil to properly treat it.
      You may use either Head Gasket Sealer. The “Pour N Go” (16 oz./white label) is a less concentrated formula that does not require the removal of the thermostat or a flush of the cooling system prior to use. Whereas the “Mechanic Approved” (32 oz./yellow label) requires both the removal of thermostat and a flush before applying the product; the 32 ounce is the more concentrated formula. The product with the yellow label will give you best overall results as long as you can remove the thermostat and flush the system prior to use. However, if the thermostat is difficult to remove or you would rather not then you can always use the “Pour N Go”.

      Thank you!

      -BDP

  10. Levi on April 20, 2016 at 3:18 am

    I was driving home from work when my jeep overheated and shut down. I think its a blown head gasket and the exhaust is leaking into the cooling system, causing the coolant to dump out the radiator cap. Also the radiator cap is bad and needs replaced. My jeep is parked being watched over by some bums that helped me push it to a parking lot…. I game him some sunflower seeds and a gatorade…please help is Blue Devil for me?

    • BlueDevil Pro on April 20, 2016 at 9:53 am

      Levi-

      We recommend using BlueDevil Head Gasket Sealer for your Jeep. It sounds like you are correct in stating that the vehicle may be 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. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  11. stan newton on May 14, 2016 at 11:00 am

    My 1996 Ford Contour (2.0) Has compression/exhaust getting into the coolant system. It basically drives all of the coolant out of the engine and over heats. Should I try your product, as it may be difficult for the product to get into the engine with all the coolant being pushed out?

    • BlueDevil Pro on May 16, 2016 at 3:37 pm

      Stan-

      We recommend using BlueDevil Head Gasket Sealer for your Countour. 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.

      Thank you!

      -BDP

  12. CEDRIC Jordan on May 27, 2016 at 8:33 pm

    I have 2001 pontiac montana the oil is milky i change the thermostat and it running at the bottom of the engine and its leaking around my catilac convert , I know my head gaskets are bad because of the white smoke out my tail pipes will the blue devil save me or do i just need to replace the motor???

    • BlueDevil Pro on June 2, 2016 at 12:11 pm

      Cedric-

      Thank you for asking about your Pontiac Montana. Based on your description, you would be a good candidate for the BlueDevil Head Gasket Sealer (32 oz yellow label). You will want to change the engine oil before and after the BlueDevil process. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

      • Zolani Langa on February 2, 2021 at 3:19 pm

        Hi I have Mahindra 2.5 Scorpio,it’s leaking oil,the engen has oil everywhere and some oil coming out of exhaust pipe,and white smoke it begins to lose power slightly,it’s using a lot of oil,but not overheating.Can I use your product?

        • BlueDevil Pro on February 3, 2021 at 8:06 am

          Zolani-

          Thank you for asking about your Mahindra Scorpio. Unfortunately, we do not manufacture a product intended to stop a head gasket that’s leaking oil. The BlueDevil Head Gasket Sealer is only intended for water/coolant leaks. A hard part repair may be your best option.

          Thank you!

          -BDP

  13. Frikkie Laubscher on May 30, 2016 at 9:14 am

    Good day,

    I drive a Nissan Navara 4lt V6. One day while driving my bakkie lost power and didn’t want to go above 3500 revs. When I opened the head, there was oil in my combustion chamber and it was smoking excessively and it is overheating. I had a guy that stripped the motor and replaced the gaskets and sealed everything. After testing the bakkie, water mixed with the oil and my bakkie still overheats and wont go over 3500 revs. Please help!

    • BD Auto Pro on June 8, 2016 at 7:19 pm

      Frikkie,

      Thanks for your question about your Nissan Navara. Our first recommendation would be to have the mechanic that replaced the gaskets and seals go back through his work and see if he’ll replace or repair anything under a warranty for his work. If you’ve got water mixing with your oil then you most likely have a head gasket leak or an intake seal leak that is allowing coolant to flow into the combustion chamber or into the oil passages of your engine block.

      If you discover a head gasket leak, then you should also check your block for flatness and your head for cracks and flatness before you reinstall it. if your head or block is warped then a new head gasket will not seal the leak.

      Thanks again for your question!
      -BD Auto Pro

  14. Chris on July 1, 2016 at 11:42 pm

    I used BD pour’n go twice after blowing out the head gasket on my 2000 Nissan xterra. All symptoms (overheating and smoke etc.) but loss of power are gone. My Xterra really struggles going up hill now. Is there something else I was supposed to do?
    Thanks in advance!

    • BlueDevil Pro on July 6, 2016 at 1:01 pm

      Chris-

      It sounds like the product was able to seal off the head gasket leaks you were experiencing. At this point we recommend trying to change your spark plugs and see if you notice any difference with the power. Another possibility would be a dirty fuel system. You could also try using our BlueDevil Fuel MD Fuel System Cleaner (http://store.gobdp.com/fuel-system-cleaner-00202/) to see if you notice any improvement.

      Thank you!

      -BDP

  15. Melissa Gorman on July 3, 2016 at 8:55 pm

    Hi I have a 2001 ford expedition and noticed weeks ago that a whitish or light blue colored smoke was coming out of my exhaust when I’d gas it after driving it more than 2 hours. I was told I had a little oil leak and had just been adding oil to it as I needed. Well yesterday I was down allot of oil and after adding some when I started it back up I smelled a sweet smell. My neighbor looked at it for me and said they think I have a bad head gasket! But I’m not over heating or having to replace coolant just oil! Do you think it’s my head gasket or what and do you think I should try this product blue devil? Please help!
    Thanks for your time

    • BlueDevil Pro on July 11, 2016 at 10:28 am

      Melissa-

      Thank you for asking about your Ford Expedition. The BlueDevil Head Gasket Sealer is only intended for water/coolant leaks. Unfortunately, we do not manufacture a product for the type of leak you have described. A hard part repair may be your best option.

      Thank you!

      -BDP

  16. Naser on August 9, 2016 at 10:18 am

    Thank you Mr. Zach Friedley for your fast reply, I appreciate your help and knowledge.
    great products come from great people like yourself.

    as you mentioned my1989 GMC 2500 is 24.8 quarts, and I need 1.5 bottles, can I use two bottles, does it cause harm if I use more?

    Thank you Sir.

    Thank you Sir,

    • BlueDevil Pro on August 9, 2016 at 10:21 am

      Naser-

      Using more than the recommended amount of BlueDevil would not be beneficial, it is best to use the specified amount. Based on the cooling capacity of your truck you should add specifically 1.5 quarts (48 ounces) for proper treatment.

      Thank you!

      -BDP

  17. David on September 14, 2016 at 4:06 pm

    My 2006 Toyota corolla started losing power while on the freeway. I seen a huge cloud of white smoke behind. I pulled over and the car shut down. Temperature gauge was high. Noticed antifreeze in the engine well. Will not start. Does it sound like something your product could repair? Didn’t see the milky appearance on my oil dipstick.

    • BlueDevil Pro on September 15, 2016 at 9:03 am

      David-

      Thank you for asking about your Toyota Corolla. In order to get the benefit of using the BlueDevil Head Gasket Sealer, the vehicle would need to be able to maintain idle for a full 50 minutes, and you should not be losing more than about a quart of water/coolant during that 50 minutes. If the vehicle can meet those basic guidelines, you would be a great candidate for the product. 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 unable to do a compression reading then you may simply pull the plugs and you should notice one of them having a white-crystal-like build up on it or it may appear 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.

      Thank you!

      -BDP

  18. Debbie on October 1, 2016 at 4:56 pm

    I have a 1998 Acura integra. Just had the clutch/flywheel replaced 3 days ago drove the car for 2 days and yesterday white smoke started pouring out of the tailpipe and it was running rough. Drove 1/2 mile home to find the radiator empty. I added antifreeze and it is still running rough and smoking . Could it be head gasket? It’s also making a knocking occasionally. Thanks

    • BlueDevil Pro on October 4, 2016 at 9:52 am

      Debbie-

      Thank you for asking about your Acura Integra. Based on your description, it does sounds like you are dealing with a blown head gasket. We recommend using the BlueDevil Head Gasket Sealer, http://store.gobdp.com/head-gasket-sealer-38386/. It also sounds like you may be getting water/coolant into the oil, which may explain the knocking sound. We recommend changing the oil before and after the BlueDevil process. Feel free to contact are technical support line at 888-863-0426 with any questions.

      Thank you!

      -BDP

  19. fredrick gipson on November 8, 2016 at 7:25 pm

    I have replace my spark plugs and check engine. Light. On running rough cant get speed will blue devil work. No leaks but sounds of hissing

    • BlueDevil Pro on November 9, 2016 at 9:21 am

      Frederick-

      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

  20. Mirza on November 11, 2016 at 9:31 am

    I have an issue with a high pressure in the coolant system (air is getting in from somewhere). The thermostat was replaced, but no change. The engine is running normal, no issues. The only real issue (and that was how I noticed the problem) is that no hot air is coming into the cabin trough the vents in low speeds, but it is ok in high speeds (motorway). Not sure if head gasket is the problem and if I should use the sealant?
    Thank you

    • BlueDevil Pro on November 15, 2016 at 11:57 am

      Mirza-

      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

  21. brian lorbiecki on November 14, 2016 at 4:40 pm

    does your product work for leaking head gasket when you have a compression leak between cylinders

    • BlueDevil Pro on November 15, 2016 at 11:42 am

      Brian-

      Yes, the BlueDevil Head Gasket Sealer would be able to seal the leak you have described. Feel free to contact our technical support team at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  22. Lou Duckwall on December 3, 2016 at 7:20 pm

    I think i can send you a picture of my actual coolant leak from the head gasket in the single location from where it is coming. Can I send this to you and then you can tell me whether your product will have a chance of stopping the leak?

    The Car is a 1996 Ford Taurus 3.0 OHV, and the leak is below the spark plug closest to the alternator. That spark plug, removed, shows no signs of coolant, so I am pretty sure the leak is external only.

    To what email can I attach the picture, or even a video?

    Thanks, Lou

    • BlueDevil Pro on December 5, 2016 at 11:47 am

      Lou-

      Thank you for asking about your Ford Taurus. As long as your vehicle can maintain idle for a full 50 minutes, without overheating or stalling out, 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 BlueDevil Head Gasket Sealer 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

  23. Siera Glenn on December 5, 2016 at 9:12 am

    I have a 2006 Pontiac Grand Prix not to long ago I was taking my son to school only to realize that my car wasn’t warming up AT ALL then once it did finally warm up there was white smoke coming from underneath my hood. My car began making a grinding noise only after pressing on the gas and when I removed my foot from the gas pedal it stopped. On my old cap it does look a little milky I don’t know what is going on help help HELP please if anyway possible

    • BlueDevil Pro on December 6, 2016 at 4:01 pm

      Siera-

      Thank you for asking about your Pontiac Grand Prix. Are you noticing a loss of water/coolant? Water/coolant getting into the engine oil is a tell-tale sign of a blown head gasket. If that is what you are seeing, we recommend using the BlueDevil Head Gasket Sealer http://store.gobdp.com/head-gasket-sealer-38386/. You would want to change your oil before and after the BlueDevil process. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  24. Erik on December 11, 2016 at 4:18 pm

    HI I own a 2008 mazda 5 with a 4 cylinder motor. I have been experiencing the car smoking after a while of driving and a leak coming from what appears to be a factory hole on the side of the cylinder head any ideas? Also would the blue devil head gasket sealer help?

    • BlueDevil Pro on December 13, 2016 at 9:27 am

      Erik-

      Thank you for asking about your Mazda 5. Based on your description, we do recommend using the BlueDevil Head Gasket Sealer. As long as your 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

  25. Ivan on February 9, 2017 at 7:24 am

    Hi!! im driving a polo 6 trendline 1.4 ….when i start the car enjine vibrate and there’
    s a funny smell smoke coming from the exhaust,oil is kinda brown nd thick nd my coolant is dissappearing …..pleaz help

    • BlueDevil Pro on February 9, 2017 at 9:50 am

      Ivan-

      Thank you for asking about your Polo Trendline. Based on your description, we recommend using the BlueDevil Head Gasket Sealer http://store.gobdp.com/head-gasket-sealer-38386/. It sounds like you may be getting water/coolant into the oil, so we recommend changing the oil before and after the BlueDevil process. Be sure to follow the cooling system capacity table on the back of the bottle to ensure the proper amount of the product is used.

      Thank you!

      -BDP

  26. ??? Worried on February 12, 2017 at 7:20 pm

    My head gasket blew when I was driving also over heated and shut off in the road with me it smoked quiet a bit and was wondering if head gasket sealer would fix the problem on a 2000 dodge durango. I mean fix it long enough to put the vehicle where I need it?????

    • BlueDevil Pro on February 13, 2017 at 10:21 am

      ??? Worried-

      Thank you for asking about your Dodge Durango. 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

    • Sam on March 26, 2020 at 10:50 am

      My Pontiac sun fire 2004!
      After changing spar plug lots of antifreeze coming out from passengers side hole while engine started ?
      Does this product will be usable??

      • BlueDevil Pro on March 26, 2020 at 11:38 am

        Sam-

        Thank you for asking about your Pontiac Sunfire. 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

  27. Rene on March 11, 2017 at 11:49 pm

    I bought the head gasket to put in my car that was leaking oil. I poured it in the oil engine and didn’t realize til after that they gave me the wrong one. Now my car doesn’t start. I removed all the oil from the car that had also the blue devil head gasket in it, and poured new oil and still won’t start. How can I fix that issue? What’s wrong with it now?

    • BlueDevil Pro on March 13, 2017 at 9:50 am

      Rene-

      The BlueDevil Head Gasket Sealer is only intended for water/coolant leaks and should only be added to the radiator cap. 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. Kimberly on April 25, 2017 at 5:55 pm

    I have a 2006 Nissan Altima I was coming out of the store got into my car & it wouldn’t start. I went to check my oil & noticed a little white milky type stuff on the stick,I also notice that the coolant I put in a couple of days ago was out. The air isn’t working good unless I’m driving it then it gets really cool. Is this signs of a blown head gasket. Can your product help???

    • BlueDevil Pro on April 26, 2017 at 9:04 am

      Kimberly-

      Thank you for asking about your Nissan Altima. Water/coolant getting into the oil is a tell-tale sign of a blown head gasket. 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/). You will want to change your oil before and after the BlueDevil process.

      Thank you!

      -BDP

  29. toknowjoyman on May 5, 2017 at 11:20 pm

    Hi there,

    I have a small amount a sweet smoke and a lot of water coming out from from the exhaust of my 97 accord. I have recently changed the oil and added seafoam. Can I use BD HGS at the same time?

    • BlueDevil Pro on May 8, 2017 at 10:35 am

      Toknowjoyman-

      Thank you for asking about your Honda Accord. Yes, you would be fine in adding the BlueDevil Head Gasket Sealer to the vehicle as described. Be sure to follow the guidelines in adding the proper amount of product to the vehicle. You should only need about 8-10 ounces to properly treat your Accord.

      Thank you!

      -BDP

  30. Gary on May 15, 2017 at 2:18 pm

    I have a 97 Silverado that just started leaking water that is milky brown in color. Oil dipstick has same milky brown color on it. For several months I’ve been losing coolant but never found a leak. I just kept adding every few days. There is also now condensation under oil cap. My oil pressure drops to nothing at idle after truck has been running a little while . Can your product or products possibly help me?

    • BlueDevil Pro on May 16, 2017 at 9:13 am

      Gary-

      Thank you for asking about your Chevy Silverado. Based on your description, it sounds like you might be dealing with multiple issues/leaks. Please contact our technical support line at 888-863-0426 so that we can get a clearer understanding of the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  31. krystal on May 29, 2017 at 11:52 pm

    i have a 1999 Honda accord its blowing white smoke has no power

    • BlueDevil Pro on June 1, 2017 at 11:47 am

      Krystal-

      It is very possible that you have a blown head gasket. However, we would like to get a little more information about your vehicle and the symptoms you have seen before making any recommendations. Please contact us at 888-863-0426 so that we may discuss it with you.

      Our tech support team is available Monday – Friday, 8:00 AM – 5:00 PM Eastern Standard Time. We look forward to speaking with you.

      Thank you!

      -BDP

  32. Vicki on June 7, 2017 at 4:17 pm

    I have a chevy S 10 4.3 6cyl x that is leaking coolant (now straight water ) with no apparent external leak. At first I had thought freeze plug that’s why I wasn’t replacing with coolant till I replaced freeze plugs, then I checked my oil and the dip stick is creamy color and about a quart over now and a little on under side or oil cap. Oh and no oil leaks or external water leaks and when temp started getting hot I knew I needed to add water. It also sputtered until it got going and then ran better. My question is will your product work for this problem? If so do I replace with new oil & filter and 50/50 Rex-cool first? I was using Mobil 1 full synthectic 20-50? Also only white smoke when I first start it.

    • BlueDevil Pro on June 8, 2017 at 9:47 am

      Vicki-

      Thank you for asking about your Chevy S10. 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 will want to change your oil before and after the process. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  33. Jamie Moseley on July 13, 2017 at 11:15 pm

    I have a 95 honda accord and everytime I crank it water shoots out of the radiator. Do u think ur product will help.

    • BlueDevil Pro on July 14, 2017 at 9:35 am

      Jamie-

      Thank you for asking about your Honda Accord. 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

  34. Brian on October 14, 2017 at 11:23 pm

    1997 Dodge Ram 3500 Van
    New Waterpump and Thermostat
    System reasonably bled after waterpump installation.

    No white smoke; no water in exhaust; no milky oil on dipstick nor white mayonnaise on oil plug. No signs of oil anywhere is hoses or radiator.

    After 5 minutes of high RPM, serious flow into reservoir with lots of steam. Does not seem like water is cycling through radiator. Could this be an exhaust side gasket leak?

    • BD Auto Pro on October 16, 2017 at 9:25 am

      Brian,

      Thanks for your question about your 1997 Dodge Ram. Based on your description it is possible that you’ve got a head gasket leak. The head gasket seals the combustion chamber so it would leak during the intake and exhaust stroke and could cause the steam and flow into your radiator overflow tank. It’s also possible that the flow into your coolant reservoir is from quickly expanding coolant as running your engine at high RPM creates a lot of heat. Our next recommendation would be to check flow through your radiator to make sure it’s properly cooling things. You can use an infrared thermometer to check temperatures in your radiator from the inlet to the outlet to see if there are any cold spots or if temperatures drop uniformly.

      Thanks again for your question!
      -BD Auto Pro

  35. Jeffrey on October 20, 2017 at 9:13 pm

    I have Mercury Sable 3.0 when I start the car the anti freeze blows out the reservoir .

    • BlueDevil Pro on October 23, 2017 at 10:04 am

      Jeffrey-

      Thank you for asking about your Mercury Sable. Have you had the vehicle diagnosed by a certified ASE mechanic? 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

      • Tammy Lewis on July 31, 2019 at 8:58 pm

        I have a 2014 Chevy Cruze. I have small amount of white smoke coming out of my exhaust.

        • BlueDevil Pro on August 1, 2019 at 8:54 am

          Tammy-

          Thank you for asking about your Chevy Cruze. Is it a constant white steam/smoke coming out of the exhaust? If so, unfortunately, it would be a sign of a blown head gasket. We recommend using the BlueDevil Head Gasket Sealer. Feel free to contact our technical support line at 888-863-0426 with any questions.

          Thank you!

          -BDP

  36. Candy on December 29, 2017 at 1:05 am

    I havr a Nissan altima 2006
    My SES Light turned on and i got a code for p0300 (the light turns off sometimes for a few days and then returns) My car has also over heated 2 times due to not enough coolant. It seems to diminish quickly. When the car has enough coolant it does not over heat. I also noticed the milky substance in my engine oil dipstick. Im pretty sure the head gasket is blown. Could your product be a solution to my car issues.

    • BlueDevil Pro on December 29, 2017 at 10:37 am

      Candy-

      Thank you for asking about your Nissan Altima. Unfortunately, water/coolant getting into the oil is a tell-tale sign of a blown head gasket. Based on your description, we recommend using the BlueDevil Head Gasket Sealer (https://store.gobdp.com/head-gasket-sealer-38386/). You would want to change your oil before and after the BlueDevil process. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  37. Fred Boehm on January 15, 2018 at 12:56 pm

    I just got a 2006 Toyota RAV4;while driving home at highway speed(60/70)push on gas and white smoke comes out of the exhaust system,,,,what would be the problem? Thanks (will this product cure this problem)

    • BlueDevil Pro on January 15, 2018 at 1:05 pm

      Fred-

      Thank you for asking about your Toyota Rav4. White smoke coming from the exhaust pipe is one of the tell-tale signs of a blown head gasket, unfortunately. Have you noticed a loss of water/coolant? If so, we recommend using the BlueDevil Head Gasket Sealer (https://store.gobdp.com/head-gasket-sealer-38386/). As long as the vehicle will maintain idle for a full 50 minutes, without overheating or stalling out, 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

  38. Kirk on March 7, 2018 at 8:42 pm

    I have a 1998 Ford Expedition 5.4 with 289,000 miles I am the original owner…has been maintained well with regular Mobil 1 synthetic oil changes. Noticed temp gauge would stick on C then soar to H and drop most of the time to normal operating temp within seconds…as thermostat opened. Some minimal coolant leak was observed on drivers side rear of engine, otherwise, no evidence of coolant in the oil. Saw bubbles and pressure in overfill tank….block tester/fluid was positive yellow. So obvious exhaust gas from one of the cylinders entering coolant. I haven’t removed any plugs and haven’t performed any compression tests. Why would blue devil be able to overcome the pressure of the gas by even removing the spark plug to allow the sealer to fix the flow of exhaust gas? Isn’t it just going to blow out the seal in a matter of time? I actually found a much better remedy from the exhaust side…think….and I am not even a mechanic. I used my chemistry/physics background.

    • BlueDevil Pro on March 8, 2018 at 9:12 am

      Kirk-

      Thank you for asking about your Ford Expedition. Removing the spark plug from the affected cylinder would reduce the amount of pressure building up in the cooling system. Basically, instead of combustion/exhaust gases blowing into the cooling system, they would be exiting from where the spark plug was. You could also accomplish reducing the pressure by disconnecting the injector in the affected cylinder. A clean, free-flowing system is what would give the product the best chance of working properly.
      We would love to hear about your remedy from the exhaust side! Please feel free to contact us at 888-863-0426 so that you can share your idea.

      Thank you!

      -BDP

  39. Danielle on May 3, 2018 at 7:54 pm

    Hi thanks for the informative article. I have a 2011 Malibu I am losing coolant if I drive the car 15 miles. Otherwise I have to change the coolant about every two weeks. My oil is not milky and there is no smoke coming from my exhaust pipe. A mechanic told me I need a new engine but it is so expensive. Do you think your product will work for me?

    • BlueDevil Pro on May 4, 2018 at 8:45 am

      Danielle-

      Thank you for asking about your Chevy Malibu. Based on your description, we recommend using the BlueDevil Head Gasket Sealer. 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 minute run, you would be a good candidate for the product.

      Thank you!

      -BDP

  40. freddiew wqorthington on May 13, 2018 at 9:23 pm

    my 2001 dodge int has a blown head gasket.will that cause my car not to run unles my foot is on the petal take my foot off the petal and it go dead how can i used blue devil.

    • BlueDevil Pro on May 14, 2018 at 9:23 am

      Freddie-

      Thank you for asking about your Dodge Intrepid. In order to get the benefit of using the product, the vehicle would need to be able to run for a full 50 minutes, without overheating or stalling out. Please contact our technical support line at 888-863-0426 so that we can get a little more information on the vehicle’s condition and be able to make any appropriate recommendations.

      Thank you!

      -BDP

  41. OleJuwon Triplett on June 2, 2018 at 11:36 am

    I have a 2013 Chevy Cruze coolant got into the engine. Now my car won’t start. Took to a shop they said a blown head gasket. Will this work

    • BlueDevil Pro on June 4, 2018 at 8:58 am

      OleJuwon-

      Thank you for asking about your Chevy Cruze. As long as the vehicle will maintain idle for a full 50 minutes, and you are not losing more than about a quart of coolant during that 50 minute run, you would be a good candidate for the BlueDevil Head Gasket Sealer. If you are getting coolant into the oil, you would want to change the oil before and after the process.

      Thank you!

      -BDP

  42. Ram on August 12, 2018 at 11:18 pm

    My 1995 Toyota Camry is misfiring and engine oil leaking, Can I use Pour N Go Head Gasket sealer? Does this stop Oil Leak?

    • BlueDevil Pro on August 13, 2018 at 9:25 am

      Ram-

      Thank you for asking about your Toyota Camry. The BlueDevil Pour-N-Go Head Gasket Sealer is only intended for water/coolant leaks. Unfortunately, it would not stop oil leaks from the head gasket. A hard part repair may be your best option.

      Thank you!

      -BDP

  43. Jerry on November 2, 2018 at 8:49 pm

    I have a 2001 Taurus with a misfire in cyl 5. I already used blue devil pour n go. Followed directions to a tee. Im still getting hydrocarbon in the recovery tank. I still have blue devil in the system. Your forum says to remove spark plug for 50 min duration. Can I just idle my car for 50 min without spark plug or do I have to flush system and start over without spark plug. And is it safe to run engine without spark plug for 50 min.

    • BlueDevil Pro on November 5, 2018 at 9:20 am

      Jerry-

      Thank you for asking about your Ford Taurus. The product only reacts to heat one time (one heat cycle). After the 50 minute idle and you shut the vehicle off, the product isn’t going to continue to react or continue to seal. Removing the spark plug from the affected cylinder will reduce the amount of pressure that’s building up, allowing the product to circulate and seal properly. Please contact our technical support line at 888-863-0426 so that we may assist you in receiving a replacement bottle.

      Thank you!

      -BDP

  44. ruth on March 27, 2019 at 8:26 pm

    my nissan altima 2006.2.5,i just service the engine yesterday,one thing i notice is that the oil as been come thicker,before i service it,have been witness a white smoke and some vapour of water in the tailpipe at a start up and.what the cause and can pour and go work for it..

    • BlueDevil Pro on March 28, 2019 at 9:18 am

      Ruth-

      Thank you for asking about your Nissan Altima. The thickness in the oil could be due to sludge or engine buildup. Is the vehicle overheating at all? 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

  45. Steven Rowlett on April 17, 2019 at 11:32 pm

    Radiator fluid in oil fluid drains slowly so small leak, no miss fire , noticeable leaks , or milky substance, fluid in oil is light but still present. Have 2013 ford f150 ecoboost, do you recomend blue devil?

  46. Steve B. on April 25, 2019 at 12:46 pm

    While out of town I had my 6 month old Ford Fusion engine light go on. It vibrated a little bit when it started up. I called my dealership in my home town and they told me to take it to a Ford dealer nearby which is what I did. Well, they told me that coolant was leaking into the cylinder. Still under warranty, but going to take them at least a week to get their information from Ford and possible engine replacement. Luckily they gave me a loaner. So now I wait.

  47. Serrana on May 15, 2019 at 10:01 pm

    I had steam coming out of my tailpipe and exhaust coming out of the coolant so it seems like a blown head gasket. My mechanic insists it is the egr cooler and has replaced that and says everything is functioning normally now. I am skeptical and thinking about using your product, but the instructions say to run the heater prior to pouring it in. My heater is not working. Does this mean I can’t use the product?

    • BlueDevil Pro on May 16, 2019 at 9:20 am

      Serrana-

      The reason behind the direction of putting the heater on, blower on “max,” is to draw heat from the engine to help it from overheating during the 50 minute run. As long as the vehicle wouldn’t overheat during that 50 minutes, you would still be fine in using the product. BlueDevil Head Gasket Sealer should NOT be used as a preventative maintenance/measure. Is the vehicle still losing water/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

  48. Randy T. on May 23, 2019 at 1:45 pm

    I have oil in my radiators plastic RESIVOR.no oil build up on the underside of oil fill cap.however there was a small amount of build up of a tan substance.on the bottom side of radiator cap.& it did smell & feal like a mix of oil & water.car runs good .by the way it is a 1995 Oldsmobile seria.with 105K original miles.the service eng.soon light .but its not looseing oil or water.leading up to serv.engine light comeing on.i did notice that sometimes on initial start up it would kinda shutter or idel kinda rough- weird.but would stabilize in a few seconds.reason i belive it could be a leaking head gasket.is due to what i see i coolant RESIVOR.& tan waxy build up under radiator cap.no build up as i said under oil fill cap.was thinking about replaceing head gasket….does this description sound like a HEAD GASKET ISSUE.& WAS WONDERING IF I SHOULD TRY BLUE DEVIL .& no white smoke that i can see of.this was my mothers car.1995 olds 103K miles.origanl plugs & wires even.its not burning oil & there isnt any leaks on ground..i feal like its a head GASKET issue..but there agin im not a mechanic..THANKS RANDY T.

    • BlueDevil Pro on May 24, 2019 at 9:30 am

      Randy-

      The BlueDevil Head Gasket Sealer is intended to seal water/coolant leaks. Unfortunately, we do not manufacture a product intended to stop oil from getting into the radiator. More than likely, you are correct in that it is probably related to a head gasket issue. Replacing the head gasket may be your best option.

      Thank you!

      -BDP

    • Krisztina Emmerson on June 20, 2019 at 7:16 am

      Thank you 😊 will let you know how I go 😉

  49. Will on June 5, 2019 at 6:29 pm

    I have a 1996 Volvo 850 with a 2.0 L inline. It was about due for an oil change when I smelled a slight burning smell from the engine. I thought it was the oil needing changed so I drained it and changed. It all looked normal like any other oil change but when I put the new oil in, ram the engine and checked the level, there were small clear bubbles on the dipstick. The oil level was on the low end of the recommended range, but still in between the high and low marks. Is this an indication of a coolant leak in the engine or a blown head gasket? I haven’t had any other issues and the coolant level is still where it should be. Would the blue devil stuff fix it? Thanks

    • BD Auto Pro on June 6, 2019 at 12:05 am

      Will,

      Thanks for your question about your 1996 Volvo 850. Since you don’t have any other symptoms of a blown head gasket it would be very surprising if you have one. Also small air bubbles in your oil wouldn’t be an indication of a blown head gasket, just an indication that you’ve got some air getting into your oil. If your oil level was on the low end, it’s possible the oil pump pick-up was near the surface of the oil and was getting a little air drawn in causing some foaming. Our recommendation would be to fill the oil to the top of the range and let your car sit for 15 minutes after you shut it off before you check the oil level to see if the bubbles go away.

      Thanks again for your question!
      -BD Auto Pro

  50. Gerald on June 10, 2019 at 3:11 pm

    My name is Gerald i have a 2011 chevy aveo that i think has a gasket leak. Ive replaced the water pump, thermostat, coolant reservoir, and all hoses my car still runs hot. My reservoir is bubbling out. What could this be?

    • BlueDevil Pro on June 10, 2019 at 3:48 pm

      Gerald-

      Thank you for asking about your Chevy Aveo. Based on your description, it sounds like you might you be 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

  51. Krisztina Emmerson on June 18, 2019 at 5:39 am

    Hey, found your website while Google- coolant leaking from exhaust manifold. I have bought a 1992 Honda Prelude. I have noticed today that I have coolant slowly dripping under the exhaust manifold. No coolant in the oil. And I would like to know if there is a possibility that the exhaust gas got into my coolant as every time I stop the engine a lot of coolant ends up in the reservoir tank or it is because I haven’t bled the cooling system? Will be great hearing from an expert 😊
    Krisztina

    • BlueDevil Pro on June 18, 2019 at 10:16 am

      Krisztina-

      Thank you for asking about your Honda Prelude. Based on your description, bleeding the system would be the most logical place to start. This will ensure that there are no air pockets trapped in the system. Once the system is bled, if the problem persists, you may want to try doing a block-dye test. A block-dye test would confirm the possibility that you are getting combustion/exhaust gases pumping back into the cooling system.
      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

  52. Astrid Barros on June 19, 2019 at 12:35 am

    I have an 03 BMW 525i. In the past couple months When I start the car after sitting overnight, it blows white smoke, but if I start it after it only sits a couple of hours it does not do it. I does not smoke while driving. No loss of power. Have to add coolant about 1/2 cup every 3 to 4 weeks. My car did overheat about 5 yrs ago, but car was stopped right away. Will Pour n Go help? How much to use?

    • BlueDevil Pro on June 19, 2019 at 8:31 am

      Astrid-

      Thank you for asking about your BMW 525i. Based on your description, you would be a good candidate for the BlueDevil Pour-N-Go Head Gasket Sealer. It doesn’t seem like you are losing coolant quickly at all, so the product should be able to seal the leak with no problem. You would need about 16 oz. for your vehicle.

      Thank you!

      -BDP

  53. Brandi Quigg on July 4, 2019 at 6:26 pm

    I have a 2013 Dodge Dart Rallye and had cylinder 1 misfire and check engine light came on. I had spark plugs and ignition coil replaced. After repairs, my check engine light came back on with cylinder 1 misfire again and noticed small amount of white smoke coming out of tail pipe but was not continuous and is not happening now. My car started to over heat when sitting at light but cooles off when I started driving and coolant low after filling it 2 weeks ago. I am also experiencing when I first start my car, it feels like it’s going to stall until I rev the engine for 2 seconds and it’s ok. My check engine light has gone off on its own but want to know if what I’m experiencing could be result of head gasket leak and if this would help my issue.

    • BlueDevil Pro on July 8, 2019 at 8:53 am

      Brandi-

      Thank you for asking about your Dodge Dart. From the sounds of it, it’s possible that you are getting combustion/exhaust gases pumping back into the cooling system. This is usually attributed to warped/cracked heads. 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

      • Brandi S Quigg on July 11, 2019 at 7:54 pm

        Thank you very much for your response. I will try this weekend and provide an update

  54. Chris on August 7, 2019 at 9:57 pm

    Hello. I have a 2008 Jeep Grand Cherokee. Check engine light came on and Jeep has been overheating. A couple times it wouldn’t start. Brought into dealership and they said gasket is blown, cylinder is misfirining, failed block test and coolant in oil. They recommended new long block. It was very low on coolant, so they put water in. I drove home (20 min drive in 90 degree weather) and it didn’t overheat. Would this product be worth trying or do you think I’m beyond repair based on their assessment?

    • BlueDevil Pro on August 8, 2019 at 9:38 am

      Chris-

      Thank you for asking about your Jeep Grand Cherokee. Based on your description, it does sound like you are getting combustion/exhaust gases blowing into the cooling system and creating excess pressure. We recommend applying the BlueDevil Head Gasket Sealer. To give yourself the best overall chance of BlueDevil working successfully is to remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the lowest 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 the plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly.
      As long as the vehicle will maintain idle for a full 50 minutes, without overheating or stalling out, and you are not losing more than about a quart of water/coolant during that 50 minute run, you would be a good candidate for the product. You would want to change the oil before and after the BlueDevil procedure.

      Thank you!

      -BDP

  55. Thabani Mkhize on October 16, 2019 at 3:16 am

    Hi.
    My 1999 Renault Megane Scenic 1.6 would start perfectly & driven nicely for about 23km start loosing power when accelerate till stop, if you park for about 30min & start again, it will run smoothly and repeat the first issue over & over. Diagnose has been done and nothing serious is revealed. Is this got anything to do with head-gasket?

    • BlueDevil Pro on October 16, 2019 at 11:00 am

      Thabani-

      Thank you for asking about your Renault Megane Scenic. The tell-tale signs of a blown head gasket would be water/coolant getting back into the engine oil and/or white smoke coming from the exhaust pipe. Based on your description, it doesn’t seem like you have any of the tell-tale signs, so it would be difficult to say that it’s head gasket related. At this point, we recommend having a block-dye test performed to check for combustion/exhaust gases pumping into the cooling system.

      Hope this helps!

      -BDP

  56. ROBERT G BURGHARDT on January 10, 2020 at 4:31 pm

    I have a 2007 Toyota Camry Hybrid. I’ve been told it is leaking coolant into cylinder 4. Will your product save me the $4,000 Toyota is telling me that it will cost to fix?

    • BlueDevil Pro on January 13, 2020 at 9:12 am

      Robert-

      Thank you for asking about your Toyota Camry. Is the vehicle overheating at all? If so, 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. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  57. Abdulrahman on March 5, 2020 at 8:15 am

    Hi, I am having BMW 325i E36 model 1994, I am having white smoke when i am driving over 180 Km/H, can BlueDevil fix this problem and solve it…?

    • BlueDevil Pro on March 5, 2020 at 8:45 am

      Abdulrahman-

      Thank you for asking about your BMW 325i. Are you only seeing the white smoke/steam when you drive over 180 Km/H? Have you noticed a loss of water/coolant? Is the vehicle overheating at all? 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

  58. Abdulrahman on March 7, 2020 at 11:52 pm

    Yeah brother, only white smoke when i am driving over 180 Km/h….and that time when the white smoke (steam) coming out, the heat increases rapidly from low to middle, and when i checked the water level after this, I noticed that the water level ( coolant water) decrease a little bit.
    So, when i am driving normally and not reach 180 Km/h, the water level be same and there are not any loss of water coolant and the temperature remain same (low).

    • BlueDevil Pro on March 9, 2020 at 9:53 am

      Abdulrahman-

      Typically with a blown head gasket, the white smoke(steam) coming out of the exhaust pipe would be more constant. You can try doing a block dye test to check for combustion/exhaust gases pumping back into the cooing system.
      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

  59. Rachel on April 6, 2020 at 3:37 pm

    Hi I have a 2005 Pontiac Sunfire and I noticed that my coolant light kept coming on even after I filled it. I then noticed a wet spot where the oil fill cap is and where the hose connection to the intake manifold is. Do I need to replace my head gasket? and if so should I get a head gasket kit and replace the whole thing?

    • BlueDevil Pro on April 7, 2020 at 8:56 am

      Rachel-

      Thank you for asking about your Pontiac Sunfire. The tell-tale signs of a blown head gasket are water/coolant getting into the engine oil, making it appear milky, and smoke/steam coming out of the exhaust pipe. Based on your description, it does not sound like you have any of the tell-tale signs of a head gasket issue. You may have a hose that’s leaking, meaning the system can never stay full after you’ve filled it. See if you can pinpoint the faulty hose and replace it. If you are still having issues, you may want to bring the vehicle in for a proper diagnosis.

      Thank you!

      -BDP

  60. Augo on May 21, 2020 at 6:38 pm

    I have a 1983 motorhome with a Chevy 454 7.4L Big Block engine. I am planning on driving it 800 this summer miles but it has been sitting for two years. While tuning up, i noticed steam coming off the engine block. It appears there is something seeping out from between the head and cover on the rear right side of the motor, and when if hits the hot metal it evaporates instantly. I suppose it is coolant, but would failing head gasket cause this seepage/steam? Considering it has sat for two years, is this a “cobweb” I can expect to go away after a few hours on the road or is it something that needs repair or preventative maintance before I leave?

    • BD Auto Pro on May 21, 2020 at 9:18 pm

      Augo,

      Thanks for your question about your 1983 Motorhome. We’re assuming you mean you have a leak coming from between your valve cover and cylinder head, the topmost gasket on the motor. There wouldn’t be any coolant coming out of this gasket it would either be engine oil or possibly water from condensation in your motor. It is especially likely that it’s just water vapor if the leak happening before the motor got all the way warmed up. If this is the case, we recommend running your motor for about a half-hour (assuming the PCV system is working) then changing the oil to make sure all the condensation is out of it. It’s also likely that you will need to replace your valve cover gaskets but it’s possible with a little use they will soften back up and start to seal better stopping that leak. Unfortunately only time will tell with that so it may be worth taking a shorter trip around town before your road trip to make sure everything is good.

      Thanks again for your question!
      -BD Auto Pro

  61. Lariel on July 15, 2020 at 3:32 am

    I have a 2008 Infiniti G35 sport. I’ve driven for couple months now and it was driving fine until one day I was on my way home and I noticed the thermostat gauge went up a little. I got the car home and turned it off and noticed coolant pouring out with pressure from by the thermostat. I replaced the thermostat with a new one and released the pressure that was built up there but it continued to build up again. I was told that it can be a blown head gasket.

    • BlueDevil Pro on July 15, 2020 at 9:29 am

      Lariel-

      Thank you for asking about your Infiniti G35. From the sounds of it, you may be 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

  62. Crystal on October 1, 2020 at 9:04 pm

    I have a 2012 Durango with the 5.7 Hemi and there is oil in the radiator and over flow bottle. When I checked under the radiator cap, there is a milky substance, but under the oil cap it is fine. No coolant is mixed in with the oil. The Durango is not overheating and there is no exhaust smoke. We had a mechanic look at it and he thinks it is a blown head gasket or a potential cracked head. The Durango runs fine. Will one of the blue devil products help with this?

    • BlueDevil Pro on October 2, 2020 at 10:15 am

      Crystal-

      Thank you for asking about your Dodge Durango. Unfortunately, we do not manufacture a product intended to stop oil leaks from the head gasket. BlueDevil Head Gasket Sealer is only intended for water/coolant leaks. A hard part repair may be your best option.

      Thank you!

      -BDP

  63. Angela on October 20, 2020 at 10:53 pm

    I have an 05 Buick Century 3.1 engine. The car dealer cleared the check engine light and sold it to me with a blown head gasket (complete douchebag, but that’s another story. It is a small leak, so I was unable to detected it on the short 15 minute test drive on the highway. But it starts hesitating and jerking after it’s warmed up. There’s no oil mixing with the coolant; it doesn’t overheat; and I don’t even see white smoke. I had a mechanic do a full diagnosis. He said that I have a cylinder 5 misfire due to the blown head gasket. He gave me the code of P0305. It’s not worth putting in a new engine or labor for a new gasket. But I did lose thousands on the car. Could Blue Devil gasket sealer work to fix it if the instructions are followed exactly? Also, do you guys offer a money back guarantee on your product? Thanks in advance for your insight!

    • BlueDevil Pro on October 21, 2020 at 8:28 am

      Angela-

      Thank you for asking about your Buick Century. BlueDevil Head Gasket Sealer is only intended to treat water/coolant leaks. Is the vehicle losing water/coolant? If so, it’s possible that you are getting combustion/exhaust gases pumping back into the cooling system. You can have the mechanic 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.
      Yes, the BlueDevil Head Gasket Sealer carries a money back guarantee. Feel free to contact our technical support line at 888-863-0426 with any other questions.

      Thank you!

      -BDP

  64. Chris smith on February 15, 2021 at 5:52 pm

    I have a 2013 f250 diesel noticed antifreeze out of exhaust no milky oil it’s a 6.7 liter

    • BlueDevil Pro on February 16, 2021 at 8:41 am

      Chris-

      Based on your description, we would recommend using the BlueDevil Head Gasket Sealer for your Ford F-250. Be sure to follow the cooling system capacity table on the back of the bottle to ensure the appropriate amount of product is used for your vehicle.

      Thank you!

      -BDP

  65. tay on June 10, 2021 at 8:05 pm

    i just used the pour n go product i had a misfire due to a small coolant leak into my forth cylinder just finished the 50 minute idle waiting on results should this fix my misfire ?

    • BlueDevil Pro on June 11, 2021 at 8:20 am

      Tay-

      The BlueDevil Pour-N-Go Head Gasket Sealer would be able to treat the leak you’ve described. After the vehicle cools down, check the spark plug to make sure it is not in need of replacement. If it looks fouled out or deteriorated, try replacing the spark plug first, and then take it on a test drive. You should no longer be experiencing the misfire.

      Thank you!

      -BDP

  66. N8 on June 26, 2021 at 6:37 am

    My 05 Dakota 4.7 started with the white smoke from the exhaust. Checked the dip stick and it had brown oil much higher than the oil level should have been. I’m assuming because it had just started pouring in there and mixed. I know it wasn’t in there the day before. Let the oil drain plug out and got about a cup of coolant before any oil. Is it going to be worth it for me to try any sealant?

    • BlueDevil Pro on June 28, 2021 at 8:23 am

      N8-

      Thank you for asking about your Dodge Dakota. Water/coolant getting into the engine oil is exactly the kind of leak the BlueDevil Head Gasket Sealer is intended for. As long as the leak isn’t more than seeping or lightly dripping, you would be a good candidate for the product. You would want to change your oil before and after the BlueDevil process.

      Thank you!

      -BDP

  67. Joe on July 26, 2021 at 1:36 am

    I have an Audi A4 2006 2.0t Quattro, just bought the car a small while back and today on my pizza route it dumped out a crud ton of coolant. It looked like it was coming from the radiator and right below the engine. I had a mechanic tell me I have a cracked head so I’m left wondering, would replacing the radiator and using blue devil work? Please let me know. Thanks.

    • BlueDevil Pro on July 26, 2021 at 8:44 am

      Joe-

      Thank you for asking about your Audi A4. BlueDevil Head Gasket Sealer is intended to treat warped/cracked heads. As long as the vehicle can maintain idle for a full 50 minutes without overheating or stalling out, and you are not losing more than about a quart of water/coolant during that 50-minute run, you would be a good candidate for the product. Replacing the radiator would be necessary if its losing coolant as quickly as you’ve described.

      Thank you!

      -BDP

  68. wisdom on July 27, 2021 at 1:07 pm

    good evening, i just work my 2004 toyota rav4 engine i replaced rings, head gasket etc,
    start the engine n it work well, on putting water/coolant, the engine is no longer starting,
    i see water/coolant on the spark plug, pls any remedy ?

    • BlueDevil Pro on July 27, 2021 at 2:04 pm

      Wisdom-

      Thank you for asking about your Toyota Rav4. Were the heads sent to machine shop to be smoothed through a milling machine? Warped/cracked heads could be the cause for coolant getting onto the spark plug(s). How quickly are you losing water/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

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