the climate control fan in my cobalt is pissing me off, it squeeks really bad when set on 1 or 2, i can still hear it on 3, but not on 4 because the sound of the air being pushed. It sounds like there is plastic rubbing, cuz when i hit the brakes it gets worse, but if i hit a speed bump or go up a really steep hill it won't squeek at all. Its annoying, anyone know where i can access the fan? i will shoot it up w/ wd 40

thanks