Cavalier/Z24 L4-138 2.3L DOHC VIN D MFI (1995)
Suspension Strut / Shock Absorber: Customer Interest
Suspension - Rear Shock Noise In Trunk Area
File In Section: 3 - Steering/Suspension
Bulletin No.: 73-34-03
Date: April, 1997
Subject:
"Loose Lumber" Rear Shock Noise in Trunk Area
(Inspect/Replace Rear Upper Strut Mount)
Models:
1995-97 Chevrolet Cavalier
1995-97 Pontiac Sunfire
Condition
Some owners may comment on a rear shock noise which sounds like loose logs or lumber in the trunk area. This noise or rattle is present in cold ambient
temperatures and may be more noticeable with uneven or snow packed road surfaces at slow speeds, usually 5 - 20 mph (8 - 32 km/h).
Cause
Rear shock damping response may be transmitted through the body structure and heard as a loose lumber noise.
Correction
A new softer durometer upper shock mount will go into production approximately March of 1997.
Important:
It is still necessary to diagnose the condition as follows.
1.
Inspect and re-torque rear upper shock mounts, lower shock mounts, and bracket to axle.
2.
Remove the upper strut mount to body bolts and nut. Refer to Section 3D of the Service Manual.
3.
Inspect for the presence of underbody coating between the strut mount and the body. Remove any material so that the upper mount mates to the
painted surface.
4.
If the above is OK, install revised upper shock mount, P/N 22178213, and recheck.
Parts Information
P/N
Description
22178213
Upper Shock Mount
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Labor Time
E5057
Use published labor
operation time
