On my 95 GT I used the defrost and then went to turn it so the heat would come out on the floor and it wouldn't switch. I turned the knob to everything and it wouldnt switch off of the defrost setting. I mean the knob moves but the setting never changes (ie... floor, vent, both, defrost etc). has anyone ever encountered this problem and what to fix?

 

not sure if it runs off vaccum but pull the cluster out and see if the line to the back of the switch came off

 

appreciate it... will check that out.