Q: Cooling fan will not turn off

asked by on

Had the cooling fan relaced now it want turn off i have to pull the fuse so could it b the relay switch or they put a bad fan in

My car has 1659342 miles.
My car has an automatic transmission.

The cooling fans are controlled On and Off by the engine ECM. The ECM commands the cooling fan relay module box (on left front of engine compartment) to turn on the fans when needed. If the fans are on all the time, even after shutting off the car, then you have a stuck relay in the cooling fan relay box. The ECM can be tested to see if it is causing the problem with a computer scan to see if it has commanded the fan on. The most common problem is the relay module box. If you are still having problems and want to have this looked at, a technician from YourMechanic can come to your home or office to inspect your AC and make this repair.

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. Cooling fan will not turn off

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: Luke warm heat from heater

This may be a thermostat issue where the thermostat is not closing at the right temperatures resulting in the coolant running continuously throughout the motor which does not allow the engine to reach normal operating temperature. As you may know,...

Q: Car will overheat if I don't have the fan on. When fan is off it doesn't come on to release heat from engine. So the fan is always on.

Check the wiring to the coolant temperature sensor and see if there is power to the sensor switch. If there is no power, then check the cooling fan relay and see if its clicking on. If there is no clicking...

Q: Radiator fan cover???

Thanks for writing in about your 2003 Infiniti J35. This is the radiator fan shroud upper and lower. They are the same as a radiator fan cover. If you need to have a technician inspect your the noise to verify...

Related articles

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...
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...
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.