My engine fan comes on right after start up.

Asked by Jun 23, 2015 at 05:22 PM about the 2012 GMC Sierra 1500 SL Ext. Cab LB

Question type: Maintenance & Repair

We just turned "hot" in AZ and my engine fan comes on right after start up. The engine
temp is not hot. Is this just my AC fan? How often should it come on? Should I have it
looked at?

2 Answers

146,265

The fan will come on with A/C, not so much for engine cooling but for air-flow over condenser, to get the A/C going. No worries.

17,290

I agree with FordNut if it is that hot were you are i know you have the A.C on before you even start the vehicle so the fans will come on as soon as you start the vehicle.

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