Have heat and cold air but doors will not move from defroster two air vents on dash.
Jul 7, 2017 at 2:35 AM
Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
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HMAC300
AUTOMOTIVE REPAIR CONTRIBUTOR
48,601 POSTS
check for a vacuum leak at control head or one of the vacuum motors. See picture can be a line has fallen off or a leak.