1995 Chevy Cavalier Electrical Cooling Fan

1995 CHEVROLET CAVALIER
138,000 MILES • 4 CYL • 2WD • AUTOMATIC
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JLEWI108
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  • 1 POST
Okay, so I've had an overheating problem for some time now. I started by replacing the thermostat, which didn't help. So then I noticed the cooling fan wasn't turning on ever. I took out and the fan and tested it and the fan motor works. I replaced the ECT, the relay and the fuses on the fuse box. I replaced the PCM fuse also. I think it might be the wiring, but I'm just not sure. Have I missed anything?
Jun 14, 2010 at 11:35 AM
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INTERNETMECHANIC
  • ✓ASE Certified Mechanic
  • 700 POSTS
  • ASE Certified Mechanic
Any applicable trouble codes? Does the fan run with ac turned on? I've seen fans with intermittent issues, faulty brushes. Seemed like every time I tried to test, it would run up a storm. Test the circuits at the fan relay. Voltage to the load side of relay is hot all the time. Voltage to the control/coil side of relay, depending on the vin, is either hot all the time or goes hot when you turn the key on. Ground for the coil side of relay, bottom left relay, is controlled by the pcm.


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Jun 14, 2010 at 12:00 PM
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