Bob Nguyen

I notice high pitch squeal while moving that sounds like brake squeal exactly at 2000rpm that goes away after climbing above or going below it. Mechanic has changed and taken off serpentine belt, checked some valve, AOS, and still squeal happens. Sport exhaust on or off doesn’t make difference. Everything stock on car. Any insights? Thx!

Tj40

Tensioner itself? - on the 997.2's the tensioner arm can corrode and stick. Belt squeals when it is slipping (esp then air con kicks in)