Grand Prix V6-3100 3.1L MFI VIN M (1994)
Valve Cover: All Technical Service Bulletins
Engine Rocker Cover - Oil Leak
File In Section: 6 - Engine
Bulletin No.: 47-61-35
Date: October, 1994
Subject:
Oil Leak at the Rocker Cover
(Replace both Composite Covers with New Aluminum Cover)
Models:
1994-95
Buick Century, Regal, Skylark
1994-95
Chevrolet Beretta, Corsica
1995
Chevrolet Lumina, Monte Carlo
1993
Oldsmobile Cutlass Supreme
1994-95
Oldsmobile Achieva, Ciera, Cutlass Supreme
1994-95
Pontiac Grand Am, Grand Prix with 3100 Engine
(VIN M - RPO L82)
Condition
Some vehicles with composite rocker covers may experience an engine oil leak at either the left or right rocker cover.
Correction
Several conditions may contribute to component interactions. To reduce system sensitivity, a new rocker cover has been designed to address a variety of
potential causes simultaneously. The original rocker cover was produced from a composite material; the new cover will be aluminum. In the interest of
customer satisfaction and the desire to maintain a uniform underhood appearance, the aluminum rocker covers should be installed in pairs. The
composite rocker will no longer be available from GMSPO. Before any repair is made, follow normal diagnostics as outlined in the appropriate vehicle
Service Manual, Section 6A. If the oil leak is determined to be from the composite rocker cover, follow the service repair procedure as outlined in
Section 6A5 of the Service Manual. Remember to check for oil leaks after the repair is made.
Parts Information
Description
Part Number
Right Rocker Cover
24504670
Left Rocker Cover
24504669
When ordering a rocker cover assembly, the gasket is included.
Note:
If the engine has composite rocker covers, it is suggested that both rocker covers be replaced to retain a uniform underhood appearance.
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
