a/c not working right
Supreme Member
Joined: Nov 1999
Posts: 2,860
Likes: 3
From: NE
Car: 82 camaro SC
Engine: 350
Transmission: 700r4
The blower isn't run by vacuum, it runs from electricity. Does the air stop coming from the vents and start coming from another location(like the defroster)?
Senior Member
Joined: Dec 2001
Posts: 652
Likes: 0
From: Pahrump, Nv
Car: 1991 z28
Engine: l98
Transmission: 700r4
check the vacuum lines goin from the firewall to the back of the motor. I had that happen to me. I was only gettin air out the defroster, i pullede the lines off the plenum and blew into them and i heard the leak behind the block. That was very painful squeezing my hand in there to fit the tubing over the hard line. Turned out the hard line snapped. ( cheap crap) The car also idled much better after that.
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All of the air is redirected to the defroster vents. 