Serpentine Belt Tensioner May Fail on Chevrolet S10

Problem Description and Possible Solution

The serpentine belt tensioner can fail; it may become noisy and/or the belt may jump off. Replacement of the failed tensioner will be necessary.

Problem Data
RepairPal Verified
Average mileage: 110,444 (67,000–170,000)
Engines affected: 2.2L 4 Cylinder, 4.3L V6
9 model years affected: 1995, 1996, 1997, 1998, more1999, 2000, 2001, 2002, 2003
28 people reported this problem
Viewing 1 - 10 of 10 problem details
tensioure pulley broke. took to shop for repair.
I have a 2000 2.2 s10 and I need to replace my belt tensioner pulley because it's been making noises for the past two weeks. The more you press on the gas pedal, the more noise it makes. Anyways, I finally knew what the problem was couple of days ago. This week I'll replace it and buy a new one.
Tensioner will not stay still always oscillating
Belt came right out but put back and it's running on its on edge ready to come right off
I had to replace 3 in 4 months, any out there know how to give this a permanent fix .
had to replace this twice on a 1996 Chevy Blazer with the 4.3 engine within 5 years and about 30K miles.
Windshield wipers won't stop moving, replaced the circuit board and it works fine now
The pulley frozen rusted in place.
it started sqeaking Then the belt jumped off and the entire tensioner departed
Idler bearing making loud squeeking noise. I will need to replace it as well as serpentine belt.