I'm about 90% sure it's not a motor type noise. I can hear it the best when i'm next to a wall and it's mostly coming from the right side but I can also hear it on the left very slightly.
I've heard people say it could be a cracked vaccume(sp*) line, some kinda heat shield, or a wheel bearing.
I took it to the dealer and they didn't know either. They said i'd have to go to a GM dealer to get it checked out. They also suggested having the tranny flushed for some reason. :-/
Everyone who has heard it says it's nothing to worry about and it shouldn't get any worse.

I dunno, i'm at a lose... please help

any opinions?