Hello. I have the car listed above 3800 v6. Cooling fans are not coming on unless I have A/C running. Any thoughts? Thanks, Chris.
Jul 11, 2020 at 11:42 AM
Radiator cooling fans not working
1994 BUICK PARK AVENUE
CHRIS MCCRAY
- MEMBER
- 2 POSTS
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ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Good afternoon,
Do you have a test light to do some testing?
https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester
https://www.2carpros.com/articles/how-to-check-wiring
I attached a wiring diagram for you to view and need to do some checks.
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
One thing you can try is disconnect the coolant sensor by the thermostat and see if the fans kick on. Do this with the key on, engine off.
Roy
Do you have a test light to do some testing?
https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester
https://www.2carpros.com/articles/how-to-check-wiring
I attached a wiring diagram for you to view and need to do some checks.
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
One thing you can try is disconnect the coolant sensor by the thermostat and see if the fans kick on. Do this with the key on, engine off.
Roy
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Jul 11, 2020 at 11:52 AM
Yes, i have a test light. Will test both relays when I get home. Thank you!
Jul 11, 2020 at 12:15 PM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
You are welcome.
Keep me updated and let me know if you need any other help.
Roy
Keep me updated and let me know if you need any other help.
Roy
Jul 11, 2020 at 12:17 PM
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