help...having a little problem with my ac on my 94 GT. When I turn it on, the doors don't open up to let the air in, instead it only blows out the defroster vents (on top of dash by windshield). I thought maybe that it was a vacuum hose that had disconnected from the switch. Unforturnately this is not the case, all hoses are connected. I am thinking that it's either the swith itself, or the apparatus that opens the doors. Any ideas? thank you

 

it sounds more like the apparatus is failing to me