Skip the auto shop - Our mechanics make house calls

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.

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.

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

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: My car has a fuel injector problem, how can I free myself from this problem?

Hi there: In most cases, the symptoms you're describing are related to fuel delivery problems; with components such as the Mass Airflow Sensor, TPS (Throttle Position Sensor), or the throttle body itself being damaged, having faulty connections or simply being...

Q: Rattling noise from drivers front wheel and doesnt freely turn

There is an obstruction, or broken part(s) of some sort which could be wheel bearing related, brake related, steering linkage related or possibly even due to faulty axles (CV joints) or rotating elements in your manual transmission. A comprehensive Noise...

Q: Dash showed many lights on after the ignition was turned off

It may have been an issue with the instrument cluster not shutting down properly due to a processing error. Unless this situation begins to repeat itself, it may have been a one-off issue due to extreme cold. Keep monitoring the...

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...
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...
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.