Dash heat only blows cool air
I just bought a 1998 Newmar Mountain Aire with a Chevy 454. I turned on the dash heat, and it blows cool air. The air conditioning works great. The blower also works fine. Just no dash heat. Engi...
Forum Discussion
First of all, I am no mechanic by any means. But your problem could have to do with the vacuum system that switches the airflow from heat to vents, to defroster etc. If that is your problem, then when you reset your control from say vent to heat it is not switching the vent internally. I had this problem on a GM passenger car once. Just guessing. Good luck!
