My 95 K2500's air conditioner seems to have a mind of it's own. I can put it on max a/c and hit the recirculation button and it will kick up and run like I think it should. Or at least it sounds like it.

However I have air coming out of everywhere, defrost vents, floor, etc. If I select floor all the air comes out there, If I select defrost all the air comes out there.

So I don't know if I have a blend door or max a/c issue... or both.


HELP

Thanks
Big Green