MBELTRAN
Contributor
Posts: 154
Reg: 02-17-15
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08-18-24 11:20 AM - Post#2872832
I have a 2012 Impala LT with a V6. The cooling fans are not coming on. All the fuses and relays are good. I didnt think it was the temperature sensor cause the temperature was reading on the temperature guage and on my code reader. Replaced anyway and still the same issue. Put in a new connector when changing to new temp sensor. Inspected the wiring and all in good shape. So if i unplug the connector then the fans come on. You can hear the relay click on when fans come on and click again when fans turn off. So its not the fuses, relays, or temp sensor? What else is there to check? Any help is appreciated.
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 Shepherd
Valued Contributor
Posts: 3536
Loc: Lake George, NY
Reg: 11-11-15
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08-21-24 05:42 AM - Post#2872938
In response to MBELTRAN
Pcm programming is set to turn the fans on at about 225 degrees or when using the ac.
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MBELTRAN
Contributor
Posts: 154
Reg: 02-17-15
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09-06-24 11:27 AM - Post#2873543
In response to Shepherd
On my code reader the temperature got up to 230 degrees. Could a stuck closed thermostat cause fans not to come on?
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Shepherd
Valued Contributor
Posts: 3536
Loc: Lake George, NY
Reg: 11-11-15
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10-05-24 05:09 PM - Post#2874442
In response to MBELTRAN
Only if the t'stat caused an overheat condition, there is no direct connection.
Edited by Shepherd on 10-05-24 05:10 PM. Reason for edit: No reason given.
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