What could be the cause of this problem? First it was my Acc belt squelling super loud (was slipping off belt tensioner and rubbing bolts) and now my powerring belt is basically gone from shredding. Anyone have a clue?

Also, how do I change the PS belt? thanks

 

Over tightening?

 

i haven't touched the PS belt ever and the acc belt was doing fine for 4000 miles then all of the sudden started slipping off and rubbing bolts.

 

Change both belts and see if it still happens. You can do this yourself, or take it to a mechanic (which I think you should).

 

yeah, i'm trying to do it right now. I got a hayes manuals as well as the Nissan service one, but neither really says how I can GET to the bolts to loosen the PS belt. Both tell me where they are though.

 

Yea I know what you mean. It's a really tight fit and you have to lift the car. I've heard that removing your Y-Pipe gives you plenty of room to work with it.