What temperature should my fan kick on?

Asked by Sep 21, 2015 at 05:46 PM about the 2007 Chevrolet Cobalt

Question type: General

1 Answer

26,185

Follow up by mike >The fans should come on between 217 and 225. The temp sensor can have a few degrees difference : Actually Normal is much hotter on this vehicle "The PCM commands Low Speed Fans ON under the following conditions: Engine coolant temperature (ECT) exceeds approximately 106°C (223°F). After the vehicle is shut off, the ECT at key-off is greater than 140°C (284°F) and system voltage is more than 12 volts . The fans will stay on for approximately 3 minutes. The PCM commands High Speed Fans ON under the following conditions: ECT reaches 110°C (230°F)..also fan relay should be checked..

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