Cooling fans not working

1996 PONTIAC FIREBIRD
230,000 MILES • 6 CYL • 2WD • AUTOMATIC
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JAKE WOLOSONOWICH
  • MEMBER
  • 1 POST
Now the cooling fan are not working and I unplugged the temperature sensor and they work properly. And don't overheat but when I plug it in the fans go off and overheats. water pump new, thermostat new, temperature sensor is new. What could be the problem?
Aug 30, 2019 at 7:00 PM
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SCGRANTURISMO
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 4,897 POSTS
Hello,

I would replace the Engine Coolant Temperature sensor (ECT). In the diagrams down below I have included a wiring diagram of your vehicle's cooling fan circuit. Both of the wires that come from the ECT go directly to the PCM. so there is either a short in the ECT or the PCM has gone bad, but I'm pretty sure it's a bad ECT. Please get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Aug 31, 2019 at 9:25 PM