A/C Problem: Doesn't blow cold air thru dash vents
The blower system does not blow any hot or cold air through the dash vents. The air flow is only directed towards the windshield and floor vents no matter what temperature or vent position is selected.
Other than that, it works fine (ie: the air gets cold).
Any ideas?
Other than that, it works fine (ie: the air gets cold).
Any ideas?
Look for a vacuum leak. Start at the connections on the vacuum canister between the windshield wiper motor and the maxifuse relay center. Black plastic. Underneath, you'll find the connections.
If you find no problems there, you need to pull the hushpanel from the right front and inspect all the vacuum lines coming from and going to the HVAC controller. All different colors. You'll see them.
The door that directs where the air goes is controlled by vacuum on the ECC-equipped cars.
EDIT. Just realized you're a 98. I think your vac canister is in one or the other front fender.
If you find no problems there, you need to pull the hushpanel from the right front and inspect all the vacuum lines coming from and going to the HVAC controller. All different colors. You'll see them.
The door that directs where the air goes is controlled by vacuum on the ECC-equipped cars.
EDIT. Just realized you're a 98. I think your vac canister is in one or the other front fender.
Thread
Thread Starter
Forum
Replies
Last Post
03SLE-SteelBlue
General GM Chat
12
Dec 1, 2009 01:07 PM




