Q: Car overheats when idling only

asked by on February 16, 2016

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

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

The car idles rough and is shooting out codes p0017, p0016.

Hi, from what you’ve described and the nature of the two codes, it sounds like a timing problem. It’s possible that the timing chain has stretched, the timing chain tensioner needs to be replaced, a timing chain guide has slipped...

how do you know if you need a whole throttle body compared to just cleaning it or replacing sensors

I would recommend cleaning and replacing the sensors first. Generally, throttle bodies do not need to be replaced completely, but rather just need specific parts related to them replaced. I would also recommend checking the mass air flow sensor to...

The check engine and o/d off lights are flashing ford escape

Hi Alex. Thanks for contacting us tonight. Loud engine noise is typically caused by a crack in the exhausts manifold or the exhaust pipe. This could also be the source of your check engine light, as typically when this happens,...

Related articles

Does Running My AC in the Summer Keep My Engine Cooler?
When When you engage your air conditioning in your car, it is usually summertime and hot outside. Air conditioning serves to remove heat from the inside of your vehicle by circulating a refrigerant through the evaporator core in your dashboard,...
Symptoms of a Bad or Failing Air Injection Hose
Check your car's air injection hose for signs of damage. If there are idling issues or the Check Engine Light turns on, you may have to replace it.
Top Five Selling Cars in Colorado in 2012
Colorado Colorado offers a varied climate depending on where drivers are located. Those in lower elevations see plenty of sunshine all year, while those in the mountain areas can see as much as 300 inches of snow. Due to this,...