| Subject: | Revised Lower Intake Manifold Installation |
| 1996 Chevrolet Beretta, Corsica, Lumina APV |
| 1996-2001 Chevrolet Lumina |
| 1997-2002 Chevrolet Malibu, Monte Carlo, Venture |
| 2000-2002 Chevrolet Impala |
| 1996-1998 Oldsmobile Achieva |
| 1997-1998 Oldsmobile Cutlass |
| 1996-2002 Oldsmobile Silhouette |
| 1999-2002 Oldsmobile Alero |
| 1996-1998 Pontiac TransSport |
| 1996-2002 Pontiac Grand Am, Grand Prix |
| 1999-2002 Pontiac Montana |
| with 3.1L or 3.4L Engine (VINs J, M, E - RPOs LG8, L82, LA1) |
This bulletin is being issued to revise Steps 1 and 2 of the Lower Intake
Manifold Installation procedure in the Engine Mechanical sub-section of the
Service Manual. Please replace the current information in the Service Manual
with the following information.
The following information has been updated within SI2000. If you are
using a paper version of this Service Manual, please make a reference to this
bulletin on the affected page.
Intake Manifold Installation - Lower
Important: All gasket mating surfaces need to be free of oil and foreign material.
Use GM P/N 12346139 (in Canada, use GM P/N 10953463) or the
equivalent to clean surfaces.
- Install the intake manifold gaskets.
- Apply small drops (8-10 mm [0.31-0.39 in]) of RTV
sealer, GM P/N 12346286 (in Canada, use GM P/N 10953476) or
the equivalent to the four corners of the intake manifold to block joint (1).
- Connect the small drops with a bead of RTV sealer that is between
8-10 mm (0.31-0.39 in) wide and 3.0-5.0 mm (0.12-0.20 in)
thick (2).
The remaining steps are unchanged.
