Skip the auto shop - Our mechanics make house calls

Q: My cooling fan comes on after its been turned off for 10 mins. I have replaced one of three relays and the PCM

asked by on

I have a 2005 GMC Yukon XL and the other day I went out and the battery was dead. I hooked up a battery charger and the cooling fans came on. Pulled the relay and actually bought a new one and the fans stayed on. Replaced the PCM next and now you can turn off the truck and they turn off but after 10 mins they come on and stay on. Any ideas??

My car has 256000 miles.
My car has an automatic transmission.

A: There is a cooling fan relay fuse in the fu...

There is a cooling fan relay fuse in the fuse box that controls the relay switch. This can sometimes fail which will cause the relay to work intermittently causing the fans to also work intermittently. I would recommend checking and changing this fuse.

Was this answer helpful?
Recommended services
Get a Quote

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: Water temperature gauge fluctuates even after replacing the thermostat could it be the water pump

Hello, thank you for asking about your 2003 Honda Element. This can be many different things aside from the thermostat, such as a failing water pump, a failing coolant fan relay, a clogged radiator, or even potentially a blown head...

Q: Pitman arm

Hello, that is hard to determine without an inspection of the vehicle. Small issues can lead to bigger ones. I recommend as soon as possible the vehicle’s front suspension should be look at completely this would include ball joints, tie...

Q: cost to replace valve lifters, is this something I can do.

In order to replace the valve lifters on the engine it requires removing the intake manifold and cylinder heads to gain access to the lifters and lifter guides. This kind of job calls for a minimum of at least 10...

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...
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.