Skip the auto shop - Our mechanics make house calls

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.

A: The cooling fan clutch on this engine requi...

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?

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: I'm trying to install rear main gasket

Hi there. The problem with replacing the rear main oil seal on a Jeep inline 6 is how delicate the process can be. Most professional mechanics do this job by removing the engine; giving them plenty of clearance so they...

Q: Stalling accelerating idling rough

It sounds like the float level was set too low and causing the engine to starve of fuel. You also may need to verify the vacuum advance works and the centrifugal advance works in the distributor by using a timing...

Q: Can I remove the fan clutch and put 1 or 2 fans with a thermostat to cool the engine?

Hi, thanks for writing in. The problem with using electric fans is the amount of air flow that the fans produce. It would not be an answer that could be answered without knowing exactly what the fans air flow is...

Related articles

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...
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.