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.

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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. How can I rule out a head gasket as a reason for my truck overheating?

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: overheating and engine is shaking.

The condition that is causing the electric fans to come on selectively would be caused by the coolant sensor / switch. The sensor / switch is loosing contact connections causing the connections to the fans to cut off making the...

Q: froze wheel hub bolts and calipers screw pins

When it comes to frozen, rusted, corroded and seized parts, it will take time, a lot of heat and liquid wrench. From personal experience, I find PB blaster works better than liquid wrench. Try getting the part real hot with...

Q: Car slow to accelerate when in drive

It appears from the description that there are multiple issues going on with your Cadillac Catera. A blown head gasket will definitely cause both acceleration issues and white smoke emitting from your tailpipe. Before we can address the possible transmission...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...