Q: Car overheats when idling only

asked by on

My car overheats when I am idling. The fan does not seem to be working. The fan moves freely and is not jammed. I think the thermostat or fan switch needs replacing.

The cooling fan clutch on this engine requires the hot air flowing across the radiator to lock up the clutch when it starts getting hot. Some of these vehicle’s radiators have a leak, or flow problem, that will cause the fan clutch to not engage the way it should. Sometimes, the fan clutches are just bad. The radiator would need to be checked to ensure proper flow and heat dissipation throughout the radiator, without any blockage. I recommend that you have a mechanic, such as one from YourMechanic, inspect your AC system to confirm whether the fan, the radiator, or both, are an issue on your vehicle.

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. Q: Car overheats when idling only

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: Brakes not working correctly, grinding when trying to stop.

Hi, I have read articles that would indicate that Ford has a TSB (Technical Service Bulletin) for that year's model and for the lower control arm and several people are having the same problem. I would take it to the...

Q: Misfire in cylinder 6. GMC Sierra 1500.

Hey there. You need to have the engine compression tested to see if you have a leaking valve or rings. You could try to have the combustion chamber cleaned of carbon and see if the problem improves. This may be...

Q: Radiator fan gets stuck sometimes.

This maybe a sign of a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working...

Related articles

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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.