This happened to my gf's car... we had to install a new set of fans.. $700 at the shop $250 ourselves. Anyway... depending on the year there was a recall on the fan controller module, if your fan motors are not burnt up already, you should take your vehicle to the nearest dealer to have that replaced or it could possibly burn out your fans, causing a bigger problem
Remove the wiring harness from the back of your 1999 Cadillac Escalade radiator fan motor. Remove the radiator fan motor retaining bolts. The radiator fan will come off.
Check the thermostatic switch
Problem with the temp sensor.
It is important to have a working radiator fan. If it does not work, a person needs to check the wiring and its fuse.
The fan itself, its fuse or thermostat.
No, the radiator fan is electric.No, the radiator fan is electric.
The radiator hoses will need to be disconnected. Remove the cooling fan. Unbolt the radiator and any shroud surround and the radiator will come out. Reverse to install.
when u have ur ac running. the other one is ur radiator fan which runs consistently.
AnswerThe fact that it comes on when the A/C is on indicates the fan motor is good. The fan will only come on when the temperature sensor indicates the engine needs additional cooling. While traveling down the road the fan will rarely come on. It will come on in stop & go traffic. If the engine is not overheating, then you have no problem.there is a fan behind the radiator that is temp controlled & a fan in front of the radiator that runs when the A/C is on.
Some radiator fans will come on with the air conditioning. If it comes on with a cold engine with the air conditioner off then there may be an issue with the fan temperature switch. It is normal for a fan to come off and on during driving after warm-up.
When you say "cooling fan", do you mean the radiator fan or the cabin air fan? If the radiator fan and the compressor are failing to come on, it could just be low refrigerant but in either case there is no guarantee that any single component would cause what you describe. It could be a fuse, relay, controls, connector or any of a number of possible causes.
The radiator fan sensor switch or the radiator fan motor are at fault (maybe even both). Wire the fan motor direct to see if it will run, if it does, replace the sensor switch. If the fan motor doesn't run, replace the fan motor before you buy a new sensor. If after replacing the fan motor, the fan still doesn't run, then replace the sensor.