New cooling fan not working

2003 CHEVROLET CAVALIER
180 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
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JOHNOFBHAM
  • MEMBER
  • 2 POSTS
Installed new cooling fan, ECT sensor, relay and fuse.

If the thermostat is stuck closed will this not allow the fan to operate?
Jun 24, 2019 at 3:21 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good afternoon,

Did you check for power to the relay? You need to test for power to the wires I highlighted in the diagram.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-an-electric-cooling-fan-works

No, if the thermostat was stuck closed, it would heat up real fast and will turn on the fan.

Does it come on with the AC?

Roy
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Jun 24, 2019 at 6:03 AM
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JOHNOFBHAM
  • MEMBER
  • 2 POSTS
Thank you. I should be able to troubleshoot that tomorrow and will get back with the results.
Jun 24, 2019 at 9:51 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Sounds good.

You are welcome.

Always glad to help.

Roy
Jun 24, 2019 at 11:35 AM
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