Cooling fans won't come on

Asked by May 24, 2016 at 12:19 AM about the 2007 Pontiac Grand Prix Base

Question type: Maintenance & Repair

Have 07 Pontiac Grand prix 206,000 mi. Just
recently the cooling fans won't come on. Of course
when I'm driving temp gauge is OK when idling
temp gauge rises almost to red line. I've replaced
water pump replace thermostat replaced relay fir
fan #2 and radiator cap....any one have any ideas
what I should try next?

3 Answers


Try this, does your ac work too? Once you switch your ac on, the fans must work immediately, if they do not then it could be your fuses or fan motors. Have those checked.


thats right the air conditioner when on turns on those fans , if not have the wires and connectors and fuses checked

Can rely 1 or ac temp switch

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