2002 Southwind (Workhorse Chassis) that is blowing cold air out the driver's side defrost vent all of the time.
All the controls work normally. I can get heat or cool air thru the dash vents and the bi level works as well.
Finally put a blanket over the vent.
I can track the hose thru the firewall and I think I can feel it under the dash but there is not enough room over the doghouse to look to see where it goes.
I read a post from about 5 years ago where someone was having the same issue on a Bounder. He said the service people thought he was crazy. He never posted if he ever found the problem.
Any ideas?
Vince Sadowski