Grand Prix V6-3100 3.1L MFI VIN M (1994)
Drive Belt Tensioner: Customer Interest
Accessory Drive Belt Tensioner - Knocking Noise
File In Section: 6 - Engine
Bulletin No.: 47-61-36
Date: October, 1994
Subject:
Knocking Noise from the Accessory Drive Belt Tensioner (Replace Tensioner)
Models:
1994
Buick Century, Regal, Skylark
1994
Chevrolet Beretta, Corsica
1995
Chevrolet Lumina, Monte Carlo
1993
Oldsmobile Cutlass Supreme
1994
Oldsmobile Achieva, Cutlass Ciera, Cutlass Supreme
1994
Pontiac Grand Am, Grand Prix
with 3100 Engine (VIN M - RPO L82)
Condition
Some vehicles may experience a knocking noise from under the hood. This condition is more noticeable with the air conditioner on.
Cause
During periods of increased tensioner arm movement, the tensioner spring coils contact the spring guides inside the housing causing the knocking noise.
Correction
A new accessory drive belt tensioner, part number 24504828, has been developed to correct the noise issues. Refer to Section 6A5 of the appropriate
vehicle service manual for proper removal and installation procedures.
Parts Information
Description
Part Number
Accessory Drive Belt Tensioner
24504828
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor
Labor
Operation
Time
J0680
Use published labor operation time.
