just a heads up for anyone with the same problem i had on my 03 cavalier the drivers side vent ( the one in the dash bezel ) was not letting any air come threw it for some reason so i took the bezel out, and found out in the vent there was a big piece of like styrafoam (however u spell it) that was wedged in their so i pulled it out and it fixed the problem, again just a heads up.
Moms & Dads talk to your kids,before its too late,tell them to say no to aluminum wings.
Repost but still use full info for noobs.