By October 11, 2013 5 Comments Read More →

Head Gasket Sealer – Try This

K&W engine block sealerThe most popular question I get everyday involves a blown head gasket (or a perceived one) and alternatives to the costly replacement repair job.

First things first!  Rule out EVERYTHING else before you jump to conclusion and blame the head gasket for your engine overheating and coolant loss.

I get so frustrated reading emails from readers that say “my mechanic says I need a new head gasket and it will cost $1200”.  The $1200 price is probably correct, but NOT doing the proper testing for a head gasket failure and ruling out other items first is NOT correct.

So you have been told you “might” have a blown head gasket. Yep, I hear ya….let me guess, your mechanic “thinks” you might have a head gasket leak because he has already changed a ton of parts and still can’t figure out why the engine is overheating…so it MUST be the head gasket’s fault.  Argggggg

In ANY overheating case, or coolant loss situation get a “cooling system pressure test FIRST” if your mechanic has not done that run….run fast and find a real mechanic.  It would be like going to the doctor for chest pains and he says “you need a heart valve replacement” without even checking your blood pressure.  Would you stand for that?  Arggggg

OK, I want you to watch my overheating video FIRST, rule out what you can. When does it overheat is the best starting point, are you adding coolant regularly, does it have white smoke out the tailpipe, is the check engine light on, does it run bad, is there water in the engine oil?  etc.

 

OK, now after you have watched the video above, and you still think you have an internal coolant leak and want to try my favorite head gasket sealer by K&W Block Seal then watch the video below for MY instructions.


 

Please leave your questions and comments below. I answer all of them.  If you found this helpful please share on Facebook or Twitter and bookmark my site.

Blessings,

Austin C. Davis

 

 

 

Posted in: Head Gasket Repair

About the Author:

Austin Davis, consumer car repair advocate. "Hi there! I love to help people solve their car repair problems and I hope my site was helpful to you today. Thank you for stopping by."
  • Scott Stambaugh

    I have a 2001 Nissan Frontier SC (Supercharged)
    I have excessive water dripping from the muffler and the tailpipe.
    The engine does not seem to be running bad, No check engine light, no steam or smoke. It has never overheated. I only drive 2 miles to work everyday
    I have noticed low coolant in the radiator level and it seems to end up leaking out the tailpipe.
    I have not taken it to a mechanic yet, but everyone says it is a head gasket but I am not getting any other symptoms other than water running out the back.
    Is there something else that could be an issue?
    Scott

  • Austin Davis

    I have had great success with K&W over MANY MANY years of using it, but using it the way I talk about works much better and is easier than the can instructions.

  • DOUG BAKER

    HAVE A 2000 CHEVORLET IMPALA 125,000+ MILES. MECHANIC SAYS I HAVE A BLOWN HEAD GASKET, MAYBE CRACKED HEAD, MAYBE ONE OR MORE CRACKED PISTONS. DO THESE ADDITIVES SUCH AS STEEL-SEAL, OR K&W, OR BAR’S HEAD GASKET SEALER WORK? IF I HAVE A CRACKED HEAD WILL ONE OF THESE FIX IT? THANKS A BUNCH!

  • Austin Davis

    I would get another opinion from another mechanic. A pressure test should fail and show you where the leak is coming from. No leak but using coolant? There is a leak. Rule out everything (water pump is suspect here) and rule out the engine miss caused by bad spark plug or ignition coil before using sealer. Pull out spark plug, do you see white powdery stuff on it from burning coolant? The sealer is a last ditch option.

  • Mike D

    Hey Austin,

    I’ve got a 2002 Jeep Liberty that is exhibiting many of the symptoms you describe that tells me that I might have head gasket leakage; car is not overheating but I’m constantly adding coolant to the reservoir (not a traditional radiator w/cap on top, check engine light is on, mechanic has done pressure test and informed me that the system showed no leaks and that the check engine light is telling him that the #3 cylinder is misfiring. I’m going to try your idea of K&W block sealer. My question is since the Liberty doesn’t have a capped radiator to pour the solution into, can I pour it into the reservoir or do I remove the top radiator hose and pour into the hose? Once I’ve drained the system of coolant of course?