Skylark V6-3100 3.1L VIN M SFI (1996)
Engine Mount: All Technical Service Bulletins
Strut Mount - Popping Noise Heard With Engine Movement
File In Section: 6 - Engine
Bulletin No.: 63-61-11
Date: November, 1996
Subject:
Popping Noise Heard with Movement of Engine Under Normal Conditions (Re-torque Torque Strut Mount Bolts)
Models:
1995-97 Buick Skylark
1995-97 Chevrolet Cavalier
1995-97 Oldsmobile Achieva
1995-97 Pontiac Grand Am, Sunfire
with 2.2L, 2.4L, 3.1L Engine (VINs 4, T M - RPOs LN2, LD9, L82) Built Prior To:
Location
Date
Genasys
7/29/96
Lansing
10/1/96
Lordstown
5/29/96
Ramos Arizpe
10/1/96
Condition
Some owners may comment on a popping noise that may be heard with engine movement under normal conditions.
Cause
The torque strut mount attaching bolts may become loose and the joint begins to slip allowing the torque strut sleeve to chuck on the attaching bolts.
Correction
Inspect the torque strut mount for evidence of slipping around the front and rear attaching bolts and/or torque strut sleeves.
1.
Loosen the front torque strut bolt.
2.
Re-torque the bolt to 100 N.m (74 ft lb) + 90 °.
3.
Repeat this procedure for the rear torque strut bolt.
4.
Verify correction.
Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation
Description
Labor Time
Use published
Strut, Engine
labor operation
J1520
Mounting - Replace
time.
