Skip the auto shop - Our mechanics make house calls

Q: Replacement cost for head gasket

asked by on

Vehicle overheated possibly due to loose radiater filling cap. Mechanic on site says the head gasket has been damaged and will need replacing. Otherwise other parts seem fine.

My car has 200000 miles.
My car has a manual transmission.

If the vehicle engine has overheated so severely that the head gasket was ruined, the cylinder head and block could be warped and such would have to be corrected prior to applying a new head gasket. Cylinder head gasket replacement requires strict adherence to Factory Service Manual specifications and instructions regarding block and head flatness. The latter surfaces have to be carefully measured before gasket replacement is even contemplated; these surfaces have to be flat within .002 inches, which is one-half the thickness of a human hair. Also, head bolt replacement and torque sequence, surface preparation (surfaces have to be mirror-like before gasket is applied), and so forth, are all critical. Unless the conditions are perfect, leaks are actually common. That’s why a lot of shops won’t do the work because it takes too much effort. If you have been told by a mechanic that the "solution" in your circumstance is to merely change the gasket and no mention was made of the fact that the head and block must be measured, and possibly repaired if they are out of spec, run for the exits and find a mechanic who is willing to do the repair according to the instructions. If you desire that this problem be diagnosed by a certified Mechanic, dispatched by YourMechanic right to your location, please request an engine overheating diagnostic and the responding certified mechanic will identify the problem and estimate a repair strategy to get your car running again. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Fuel and temperature gauge needles stopped working

Hello. We will be happy to assist you. I believe that the entire instrument cluster may be faulty. It is highly unlikely that nearly all of the gauges will fail at once. I suggest that you have a technician inspect...

Q: My radiator is full and my overfill is full yet my car still is overheating.

Hi there. First check the reservoir cap and make sure that it can hold the pressure that it says on it. If the cap can hold the pressure, then either the water pump is not working or the engine has...

Q: No light on a gear shift

Hello, thanks for writing in about your 2013 Chevrolet Spark. Yes, there should be some form of illumination there. It is more than likely a bulb issue. It should be a pretty straight forward fix which a technician, or possibly...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.