Signs of a Blown Head Gasket

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

118 responses to “Signs of a Blown Head Gasket

  1. 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.

        1. 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

    1. 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.

      1. 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

        1. 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.

          1. 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

  2. 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. 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?

    1. 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. 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

    1. 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

  5. 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.

    1. 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

    1. 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

  6. 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!!

    1. 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

  7. 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?

    1. 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

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

    1. 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

  9. 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?

    1. 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

  10. 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?

    1. 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

  11. 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???

    1. 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

  12. 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!

    1. 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

  13. 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!

    1. 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

  14. 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

    1. 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

  15. 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,

    1. 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

  16. 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.

    1. 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

  17. 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

    1. 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

    1. 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

  18. 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

    1. 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

    1. 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

  19. 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

    1. 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

  20. 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

    1. 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

  21. 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?

    1. 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

  22. 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

    1. 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

  23. 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?????

    1. ??? 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

  24. 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?

    1. 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

  25. 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???

  26. 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?

    1. 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

  27. 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?

    1. 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

    1. 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

  28. 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.

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

    1. 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

  30. 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?

    1. 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

    1. 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

        1. 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

  31. 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.

    1. 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

  32. 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)

    1. 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

  33. 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.

    1. 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

  34. 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?

    1. 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

    1. 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

  35. 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

    1. 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

    1. 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

  36. 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.

    1. 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

  37. 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..

    1. 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

  38. 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?

  39. 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.

  40. 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?

    1. 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

  41. 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.

    1. 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

  42. 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

    1. 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

  43. 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?

    1. 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

  44. 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

    1. 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

  45. 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?

    1. 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

  46. 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.

    1. 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

  47. 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?

    1. 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

  48. 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?

    1. 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

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