1999 GMC Safari Repair Question
Asked on February 10, 2012
Heater fan not working, wired directly to battery and fan runs (med. low speed) my guess is the resistor prior to stopping seemed to be very low speed on all speeds except high i know location of resistor (under windshield washer & anti-fr
Upon starting of vehicle defroster fan not working at all wired directly to battery and fan runs
Asked by drduffAnswer
Replied on February 10, 2012
have you checked fuses and wiring to fan?
Replied on February 10, 2012
does that have auto or manual temp control?
Replied on February 10, 2012
check hot wire to motor for juice. if no juice check fan relay. also does relay engage when fan selects high. if juice present check ground wire to fan.