I have a similar problem, except in mine, the vents blow air, but its only the temp of the air outside. The heater and the a/c don't work. Ive been freezin in my truck for months and i dont know what to do. I have no idea if theres a clogged hose or if the heater core is bad. i dont even know where to start. and even then i dont know if the heater being bad might somehow relate to the a/c being bad.
89 Ford Ranger Reg Cab, 2.9L V6, 4WD, 5 Speed Manual