OldSoul
New LVC Member
My heater just stopped working, I try to turn the heat on and there is a hollow popping noise coming from under the dash. I assume that the blend door is vacuum operated, and either there is no vacuum or it is stuck open (or shut, whatever makes it blow really cold air). It's getting to be like 20-30 degrees here, and I don't want to drive my truck all winter. How do I get to the heater under the dash and check this? Every computer on the dash works, by the way.
