I have a 1990 Chevy fullsize Blazer that is only getting air to come out of the vents. I just replaced the fan switch, vacuum switch and selector switch and it is still only blowing air from the vents. It has been REALLY cold here, and it is hard to drive without a defroster. Any ideas on what else it could be? Any help would be great.


If it weren't for bad luck I'd have no luck at all