Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Tuesday, June 26th, 2012 AT 1:08 AM
N.COLEMAN
MEMBER
1 POST
1991 CHEVROLET TRUCK
Heater problem
1991 Chevy Truck V8 Four Wheel Drive Manual
we cant get the heater/ac head unit to power up even though there is power there on several wires. We have replaced the wiring harness, computer, selenoids, blower motor, head unit. Pretty much everything in the cab that relates to the heater
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Tuesday, April 30th, 2019 AT 3:57 PM
(Merged)
JACOBANDNICKOLAS
MECHANIC
109,700 POSTS
Is the problem that you are not getting heat or the blower motor doesn't work?