Question about GMC Yukon
Temp control sensor, sounds like, Check the sensor and see if its wide open, it should shut the curcuit once its heated.
Good way to test is set the OHM metre resistance, Shouldnt have a reading when its cold and if does move than its stuck open and should be replaced, And if has no resistance and shuts off when heat applied to it see if it shuts of at a certain temp.
Posted on Sep 15, 2008
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