Thread: 2000 GTP - HVAC Mode selector not working - slightly hear hissing behind the dash

Originally Posted by BillBoost37

FWIW, it's not vacuum actuated, it's electrical and if you open up the actuator after you change it out likely there's one gear cracked and not allowing it to work.

dont think he talking about the heat or cold, but vent, floor defrost is not working.