Q: Dual cooling fans issue

asked by on August 12, 2016

My car has dual radiator cooling fans and lately they aren't working correctly. If I turn the AC on, the fan on the driver's side doesn't work. The one on the passenger's side runs great though. Cooling fans are not working at all if the AC is off. I attempted to increase the temperature by idling longer so as to affect the fans and start them running. Neither of those would start running. I had all the fuses and connections checked. I lubricated the connections also, but it is still the same. How can I fix this?

The cooling fan motors should both come on together. The cooling fan controller will control the speeds of the fans with input from the engine control module. Your fans are controlled by the fan controller on the fan motors and both motors and controller need replaced to fix the problem. If you want to have this checked, a certified technician from YourMechanic can come to your location to inspect the AC system and help you move forward with repairs.

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

Serpentine belt not spinning

It is likely that one of your ribbed or slotted pulleys has seized up causing your belt to be unable to spin. It is also possible that there may be a problem with the crankshaft drive pulley. It is possible...

I replaced the master switch and it disabled the power locks. They only work when the car is turned on. Is there a way to enable the power locks?

Hi there. The issue is with your key fob to the vehicle. The key fob (remote) will need to be reprogrammed to the vehicle to access the doors when the ignition is turned off. If you need further assistance with...

My Ford Ranger 1998 got too hot and I heard a pop.

Hi there. The noise you heard could have been fuel left in the cylinder when the engine was hot and igniting the fuel as an explosion. That is why you saw smoke coming out of the pipe on the engine....

Related articles

The Best Used Cars to Buy for Highway Driving
Do Do you spend hours each week on the highway for work? Maybe you just live in a very rural area and have to drive for 30 or 45 minutes to get to the grocery store. Whatever the case, your...
Do All A/C Systems Use Refrigerant?
All air conditioning systems use refrigerant. Refrigerant dissipates heat in the air conditioning system to keep your car cool in hot weather.
Symptoms of a Bad or Failing AC Compressor Belt
If the belt has cracking on the ribs, chunks missing, or abrasions on the back or sides, your AC compressor belt may need replacing.