I think i've got this problem figured out but i wanted to talk to some experts about it. When ive got the fan on (no matter what speed), after a while it'll start sounding really rough (noisy and grinding/rough kind of) as if its about to die, and it'll stop for a few seconds, then start again, but sounding really rough. air still comes out of the vents. from what i've been reading on here it sounds like the blower motor is shot, or on its way out.
what does everyone else think?