Skip the auto shop - Our mechanics make house calls

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.

A: The cooling fans are controlled On and Off ...

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?

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: Air conditioning compressor tight; belt squeaks

Hello, Your Dodge Dakota has a single belt that runs all of the engine accessories. If you are experiencing a belt squeak, it is important to enlist the help of a certified mechanic to diagnose the cause of your issues...

Q: Overheating

This may be related to a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working...

Q: Oil or some sort of black sludge covering CV axle, control arm, etc.

After looking at the pictures you took, it looks to me like the inner axle boot has been slinging out grease from the CV joint. I recommend you clean off the inner CV boot and look for a loose or...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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.