1999 GMC Safari Repair Question
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
have you checked fuses and wiring to fan?
all fuses & wires are good
1 question asked
does that have auto or manual temp control?
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.