Skip the auto shop - Our mechanics make house calls

Q: My car is overheating

asked by on

My hot coolant temp light keeps coming on amd my car is not running right. I changed th thermostat and it still overheating

My car has 126000 miles.
My car has an automatic transmission.

A: Overheating can be created by many things: ...

Overheating can be created by many things:

  • The anti-freeze condition poor
  • Low coolant level because of a leak
  • Coolant pump flow output low
  • Engine internal failure
  • The radiator externally blocked from airflow to cool the anti-freeze.
  • Internal blockage in the coolant system component’s.
  • Head gaskets can fail from the anti-freeze condition breaking down and creating an acid reaction.
  • Cooling fans not operating

These are just few things it could be. You said the vehicle does not run well. If overheated to a high temperature, this could do damage to the engine. The head gaskets could leak anti-freeze into a cylinder, which would causing poor operation of the engine. This is a serious condition that should be looked at by an expert who can diagnose your overheating issue and determine what component is faulty.

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・Save up to 30%

Get a quote

What others are asking

Q: Loss of antifreeze at air intake

A common failure in your engine is the intake manifold and intake plenum gaskets. When this happens coolant will leak under where the throttle body is located. I would recommend having a certified mechanic, such as one from YourMechanic, inspect...

Q: Idle is running high when driven. I put it in neutral and it idles at 2300 rpms. Just had a cold air intake put in and throttle cleaned

Hi there. Assuming your vehicle has ETC (electronic throttle control), "drive-by-wire" problems can develop when cleaning is performed. Manually opening the throttle plate may have affected the close position. An idle relearn performed with a capable scanner may resolve the...

Q: Parking Brake?

The rear parking brake shoes may be causing the clicking inside the new rotors. If the parking brakes are dragging a little. You may have rear brake pads or front brake pads moving inside the caliper bracket. It could also...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...