Radiator cooling fan not working properly

2005 CHEVROLET COBALT
89,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
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CPERRY54
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  • 35 POSTS
I Installed a new cooling fan , and coolant temperature switch. Fan works fine except, fan comes on as soon as the key is in the run position, hot or cold engine. Once the engine is shut down fan runs for about 1- to 2 minutes.
Dec 5, 2019 at 7:46 AM
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94 TRANSAM
  • ✓ASE Certified Mechanic
  • 680 POSTS
  • ASE Certified Mechanic
Hello, As for the fan coming on in run. This could be a result of a failure. Have you checked for trouble codes?

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

As for the fan running when you shut the motor off, This is normal. The PCM will run the fan to cool things off.

Rich
Dec 6, 2019 at 9:23 AM
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