1996 AC troubles....forced air fades slowly from vents

[72freak]

Originally Posted by speedygonzales

Sounds to me like your evaporator coil is freezing up. But you say your charge is at full. Maybe crap has accumulated in your orifice tube? Or there is a partial blockage some where in the system. Have you check high side pressure when the problem occurs?

As mentioned, the air is still cold and blowing. The refrigerant system is not failing. It is the directing of the cold air I am having trouble with. it is either a blend door issue that is a very common problem or a controller issue controlling the blend doors and they are always going bad also. I have just never had to deal with it and was looking for some responses from folks who have had the same issue to shed some light on the subject.