Q: Engine cooling fan works fully when it's cold

asked by on

Hi. I was wondering what could cause the engine cooling fan to start working fully and wouldn't quit all through a short-distance drive and about 15 minutes after the car is stopped. This happens when it is like 13-16 degrees C out and I don't know if the engine can get so warm that it causes this issue with the cooling fan. However, the car had no issues about 15 days ago at temperatures over 25 degrees C. This issue occurred out of the blue. What could cause this? I appreciate your help.

A: Hello. The <a href='https://www.yourmechani...

Hello. The cooling fan is activated when the temperature of the car reaches slightly above normal operating temperature. If the engine stays cool long enough, the cooling fans will not come on. If the engine gets warm but doesn’t overheat the cooling fan may stay on after the car has been shut off in order to cool down the engine. It is also possible that the coolant is low. This could cause the issue that you are describing with the engine cooling fan. It may be a good idea to have a certified technician, like one from YourMechanic, come out to top off the coolant in your vehicle.

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

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: Transmission

Hello there, The Chevy Aveo most certainly does come with a 4 speed automatic transmission. The 5th gear you may be feeling is the overdrive function of the 4th gear. 18 mpg seems quite low for this size of vehicle...

Q: P0193 in Ford fiesta durateq

Hello. Trouble codes P0191 and P0193 are the trouble codes for issues with the fuel rail pressure circuit range, reading excessively high. It may be possible that the fuel rail sensor or circuit is having an issue. I would test...

Q: Temperature gauge acts errratically and engine destroyed

Hi. Land Rovers are generally pricey to repair. If it is a common problem I would honestly look into purchasing another type of vehicle without those common issues because there is no telling if the head gasket will blow again. It...

Related articles

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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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.