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1994 Pontiac Sunbird LE Sedan radiator cooling fan not working.

I need help troubleshooting and diagnosing the problem. The fan does not come on when I start the engine, nor does it after it has idled for a while. I checked the fuse first, but it was ok. I don't have the wiring schematics, nor do I have any experience diagnosing nor troubleshooting.

Posted by Chuck Neal on


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1994 Pontiac Sunbird LE Sedan radiator cooling fan - 57441307
Above is the diagram for a 4 cylinder. It appears that you might have a fusible link which looks like a regular wire instead of a regular fuse. If you have A/C on your car you can turn it on and this automatically should turn the cooling fan on. If I remember correctly these cars have problems with the Coolant temperature sensor located near the thermostat. It will have one yellow wire going to it. You can also try to swap the cooling fan relay with the horn relay or another relay that looks similar under the fuse block. There should be a diagram of the fuses and relays under the cover. Try with the engine off and key out try to turn the fan by hand. If it does not move freely the cooling fan motor is bad. Other than that you will have to bring to a shop to have the circuits tested... Good luck.

Posted on Jan 09, 2009


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