Only cold air bloeing out if vents. There is a clicking/knocking sound heat is turned on.
Dec 8, 2014 at 8:13 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
chek for a vacuum leak one of your vacuum motors may not be working see pic.