The fan on my 96 oldsmobile 88 will not turn why?
Barring the simple blown fuse every time my fan has quit working on all my cars it was one of the following. 1 the bearings went bad in the fan and the fan became sticky. you can tell this by rapping on the fan motor itself while it is turned on, if it starts then it is sticky and doesnt have long to live. 2 the motor burned out completely you can tell this by applying 12v from the battery directly to the motors contacts in the proper polarity + to + - to - . If you are not sure how to apply power to a motor to test it you might want to have someone that knows how do it for you. if it doesn't run pretty good sign the motors dead. 3 there is a fault in the wiring and you would use the test for #2 to determine the motor is still good then start checking the wiring and switches. I usually check in the following order, glance at the led embedded in the AC switch on the AC console to make sure the unit has power , rap on the fan housing because its out in the open on the firewall under the hood and im lazy, check the fuses just for the heck of it even though the AC unit LOOKED powered, curse a bit, apply power to the motor to test it. I have only had 1 car with mysterious bad intermittent AC wiring and 1 car with a bad switch the rest were all motors that went bad.