Poor air flow from vents - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-10-2004, 10:00 AM   #1
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Default Poor air flow from vents

My A/C works but I do not get good airflow from my vents. The passenger right side vent is the weakest. I also noticed that when the A/C is on I get a significant amount of cold air from below. I thought only heat was supposed to come from this area. I cleaned the evap core a while back but this did not seem to help. I'm assuming a door is not closing or opening when it'* supposed to. What and where can I check? I know there is a tsb for a similar problem that says you should replace the vent gaskets but this requires 7.5 hours of labor and basically dismantling the entire dash. I would like to check the simple things first I just don't know where to start. Any suggestions would be appreciated.
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Old 05-10-2004, 10:26 AM   #2
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Old 05-10-2004, 11:35 AM   #3
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If you have already cleaned the evaporator and have good flow coming out of the heater ducts, maybe you have a duct flap that isn't working properly. You may get some help from this thread:

http://bonnevilleclub.com/forum/viewtopic.php?t=18158

Good luck!
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