Cars & Vehicles
Air Conditioning and Coolant

Why would the air conditioning only blow air from the defrost and floor vents and not the dash vents?


User Avatar
Wiki User

I would think that is a vacuum or a linkage problem with the heater control assembly (where all the buttons/slides are for changing between floor/defrost/vent) Had a diaphragm go bad on one once, and in a jeep cherokee, a slight collision with a guard rail knocked a vac line off for the vent controls, and ac only worked from defroster.