Symptoms of a Blown Head Gasket

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Symptoms of a Blown Head GasketIf you’re looking for symptoms of a blown head gasket, then the chances are either wondering if you’ve got a blown head gasket or you’ve got some mystery issues going on with your vehicle and somewhere along the line someone told you they could be symptoms of a blown head gasket.  If you’re in the first group, wondering if you’ve got a blown head gasket, then first we would recommend that you check out one of our previous articles describing in detail the usual blown head gasket symptoms.

If you’re in the second group reading this article and you’ve got some mysterious symptoms in your vehicle that may be hinting at a blown head gasket, then this article will help you check those symptoms for other possible causes so you don’t have to repair your head gasket.

The most common misdiagnoses symptoms of a blown head gasket are coolant disappearing miraculously or an overheating engine for no apparent reason.  If you’ve got a good understand of the cooling system in your car, then it becomes quickly apparent that these two things combined actually make a lot of sense.  If your car is slowly (or quickly) losing coolant then it stands to reason that your cooling system will slowly lose its capacity to cool things down due to the lack or water until even normal driving will cause your engine to overheat.

If you’re experiencing these two symptoms of a blown head gasket we recommend checking some other things out.  First, try simply refilling your cooling system to see if that keeps your car cool.  If that does the trick for multiple days, you may simply have a coolant leak.  Coolant leaks can be extremely tricky to find as the coolant in your vehicle will escape as steam during normal driving conditions so it doesn’t leave the evidence that, say, an oil leak will.  Also, since your cooling system pressurizes while driving, it’ possible the leak only shows up when the car is at operating temperature, or while you’re driving making it very hard to find the next morning when things are cool.

The best way to discover a mystery coolant leak is to add UV dye to your cooling system.  This is available at most auto parts stores and will often come with a UV flashlight.  Add the dye to your radiator and drive normally for a few days.  Then, park your car in a dark place, like a garage at night, and search your engine and engine bay for the dye.  Where ever the leak is, the dye will light up under the UV flashlight pointing out your leak and giving you hope that you don’t have a blown head gasket.

The other often misdiagnosed symptom of a blown head gasket is a rough or poorly running engine.  If you truly have a blown head gasket, then the coolant leaking into the combustion chamber will make combustion difficult and add lots of chemicals that shouldn’t be there causing misfires, a poor idle and bad fuel economy.  However, a poorly tuned engine or dirty engine will run the same way making it difficult to tell what the real problem is.  Since it’s good for your car anyhow, you may consider a good tune up to see if that can get your engine running normal again.  Along with changing filters and spark plugs you should consider cleaning your fuel system using BlueDevil Fuel System Cleaner.

If you’ve noticed some symptoms of a blown head gasket coming from your vehicle we strongly recommend checking for these other two sources of similar symptoms with less expensive easier fixes first.  If it turns out neither of these is your problems and you’ve got multiple symptoms as noted in our other article, then there I a high chance that you do have a blown head gasket.

If you discover a blown head gasket in your vehicle, then we recommend using BlueDevil Head Gasket Sealer to stop your leak.  BlueDevil Head Gasket Sealer will seek out the leak in your head gasket and form a seal at the leak point without harming or damaging any other part of your cooling system.

For more information about BlueDevil Head Gasket Sealer, visit our product information page here: BlueDevil Head Gasket Sealer

You can also purchase BlueDevil Head Gasket Sealer at any of our partnering local auto parts stores 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
  • Fisher Auto Parts stores
  • Auto Plus Auto Parts stores
  • Hovis Auto & Truck Supply stores
  • Salvo Auto Parts
  • Advantage Auto Stores
  • Genuine Auto Parts stores
  • Bond Auto Parts stores
  • Tidewater Fleet Supply
  • Bumper to Bumper Auto Parts
  • Any Part Auto Parts
  • Consumer Auto Parts

Pictures Provided By:

symptoms_of_a_blown_head_gasket.jpg – By JBromley – Licensed by Getty Images – Original Link

6 responses to "Symptoms of a Blown Head Gasket"

6 Comments

  1. Richard Greene on May 25, 2018 at 2:13 pm

    We have just recently purchased a 300chrysler v 6 that is running hot and was told that head gasket may be the problem I’ve tried everything I can to rectify the problem hoping your product will help. Removing the thermostat is a pain and really time consuming so what do you suggest we do in order to use the head gasket product????

    • BlueDevil Pro on May 29, 2018 at 8:28 am

      Richard-

      We recommend applying 16 ounces of BlueDevil Pour N Go Head Gasket Sealer. This is an easy-to-use product that does not require the thermostat to be removed. It can be purchased through your local auto parts store (Advance Auto Parts, AutoZone, O’Reilly Auto, NAPA, etc.).

      Thank you!

      -BDP

  2. Dez on June 20, 2019 at 9:07 am

    I have a 97 kia sportage its blowing out white smoke mix with blue smoke. Tha engin skipping really bad.

    • BlueDevil Pro on June 20, 2019 at 2:03 pm

      Dez-

      Thank you for asking about your Kia Sportage. A white smoke would indicate water/coolant burning, where a blue smoke would indicate oil burning. Are you losing both water/coolant and oil? 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

  3. Steven on December 10, 2020 at 10:39 pm

    Hi, I have a 1997 BMW 850Ci V12. I am suspecting that I have a blown head gasket. The temperature gage is ever so slightly past the middle. Once every 2-3 weeks the temperature goes up very fast. I shut the car down and after 3-4 minuets it is all back to normal of slightly over the middle. I have changed the thermostat and am in the process of changing water-pump. I assume it is my head gasket because when I was replacing the coolant it started bubbling violently out of the overflow bottle. Almost like it was boiling. Am I right in assuming I have a blown gasket?
    Also the other day I saw some foam in the oil cap. Mind u I have not been driving the car just idling for the past 3 weeks so that could be the cause of the foam. Anyhow. Do u recommend putting ur product in a rare V12?

    • BlueDevil Pro on December 11, 2020 at 8:28 am

      Steven-

      Thank you for asking about your BMW. Based on your description, it’s 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

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