This might have been me. The bolts that actually hold the alternator together (not the ones that hold it onto the car) were loose and rattling around, though I mainly noticed that at idle, and occasionally when I drove past something and could hear the sound reflect back.
Quote:
Originally Posted by rrgrassi
See if you can isolate it to the front of the engine. There was a post on this site IIRC, where a loose alternator was making a noise that made the owner think it was a probelm with the engine. Belts were tight, but the alternator hold down bolts were loose.
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