Hello, the AC and heat in my car are only blowing out of the front vents. When I turn the knob to feet or defrost, it still blows out of the front vents. There is no noise when I turn the knob like it used to when it worked. The knob isn't stiff nor loose. I'm assuming I have to replace some sort of motor. Which part specifically needs replaced?
Sep 21, 2026 at 6:30 PM