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
Flush cooling system, make sure heater core isnt bypassed. Make sure also that coolant level is correct. start engine cold with radiator cap off and watch coolant level. see if it drops when thermostat opens and then add proper coolant. Also be a blockage in heater core or a collapsed hose.
