Cooling fans not working

1998 BUICK CENTURY
200,000 MILES • 6 CYL • 2WD • AUTOMATIC
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JAMES LUCE
  • MEMBER
  • 2 POSTS
Cooling fans are not coming on.
Aug 17, 2021 at 9:26 AM
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SQM
  • ASE Certified Mechanic
  • 6,383 POSTS
  • ASE Certified Mechanic
Hello,

There are few components to look at when you have inoperative cooling fan.
It could be faulty relay or fuse, short in the wiring harness, it could even be the coolant temperature sensor not triggering the fan to come on and it can be faulty fan motor.

First you want to check the relays and fuses for the cooling fan. If you have blown fuse or faulty relay, the power will not be sent to the fan motor and fan will not work.
They are located in the fuse box under the hood (see diagram).

Here are couple of helpful articles on how to check relays and fuses:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
https://www.2carpros.com/articles/how-to-check-a-car-fuse

Please let me know of any questions.

Thank you.

Aug 17, 2021 at 10:13 AM
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