Skip the auto shop - Our mechanics make house calls

Q: How can I rule out a head gasket as a reason for my truck overheating?

asked by on

I am trying to fix an overheating problem. I replaced a leaking hose. I replaced the radiator cap. I replaced the thermostat. I replaced the water pump. I suppose my only two options left are the radiator and head gasket.

My car has 175000 miles.
My car has an automatic transmission.

A: You will need to do a pressure test on the ...

You will need to do a pressure test on the cooling system to see if there is coolant leaking from the radiator or the head gasket. The other test is to do a compression test on all the cylinders and a cylinder pressure test to see if there is compression going out the radiator. If you will need help getting this checked, consider YourMechanic, as a certified mechanic can come to your home or office to run these tests to diagnose your car’s overheating problem.

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: Car misfiring and overheating

Hi, there can be many reasons for a car to overheat and/or misfire. I would having a test compression done a vehicle. Also, have the mechanic examine the heads for warpage. The problem could have warped heads from the vehicle...

Q: need help with my car I don't know what to do or how to fix it please help

Hi there: In most cases, an engine knock is caused by cylinder head hardware being loose (such as valves, lifters or rocker arms), low oil levels or loose belts or pulley's that power many of the vehicle's components. If the...

Q: Mechanic says I need a new alternator but I don't have any problems with car starting. Should I wait until there is a problem ?

The STS mechanic may not be as qualified as a Dodge trained mechanic. I cannot be sure but most if not all oil change only places do not employ master mechanics. I can understand the reasoning for the gaskets, hoses,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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...