1991 Jimmy FULL size 5.7L V8
The heat won't switch to defrost or vice-versa-- stays at floor level all the time. I believe this is vacuum actuated-- can you give me a likely place to start trouble-shooting this ? Obviously I don't want to rip the dash apart if unnecessary.
The truck runs great -- it's the stupid s__t that drives you up a wall... lol.
The heat won't switch to defrost or vice-versa-- stays at floor level all the time. I believe this is vacuum actuated-- can you give me a likely place to start trouble-shooting this ? Obviously I don't want to rip the dash apart if unnecessary.
