Quote Originally Posted by Russell
Wear is the tensioner bearings. They just seem to get nosier over time. The tensioner's surface does not seem to wear out. There are at least two types of sounds I got from mine when worn. First is a squeal when engine is cold. That goes away in 10-20 seconds. The other is a constant background 'sound when bearings are worn.
You say 'constant background noise'. Does that noise change with engine speed?

I swear mine sounds like either the alternator or tensioner bearings. I guess I have to wait until taking delivery in January to see for sure.