GMC Troubleshooting Questions? Ask a Mechanic for Answers
I am sorry for the long wait
so the front blower motor will not work at any speed ?
and the blower motor processor down near the blower motor under the passenger side of the dash was replaced so far ?
do you have a multi meter on hand ?
automatic heater ac controller in this truck ?
if you run 12 volts to the red/black wire terminal at the blower processor will the blower motor work correctly ?
sure thing let me know
how are you making out ?