Document ID# 1811900
2004 Chevrolet SSR
--------------------------------------------------------------------------------
Subject: 5.7L LS1, 6.0L LS2, 5.3L LS4, 5.7L LS6, 7.0L LS7, 5.3L L33, 5.3L LH6, 5.3L LM4 - Engine Oil Leak at rear Cover Asembly Area (Engine Block Porosity RTV Repair Procedure) #05-06-01-034A - (04/05/2006)
Models: 2004-2006 Buick Rainier
2003-2006 Chevrolet Corvette, TrailBlazer
2004-2006 Chevrolet SSR
2005-2006 Chevrolet TrailBlazer SS, Silverado, Silverado SS
2006 Chevrolet Impala SS, Monte Carlo SS
2003-2006 GMC Envoy, Envoy XUV, Sierra
2004-2006 Pontiac GTO
2005-2006 Pontiac Grand Prix GXP
2005-2006 Saab 9-7X
with 5.7L, 6.0L, 5.3L or 7.0L Engine (RPOs LS1, LS6, LS2, LS4, L33, LH6, LM4, LS7)
--------------------------------------------------------------------------------
This bulletin is being revised to include labor time for the Grand Prix, Impala and Monte Carlo and include an Important statement in the Correction procedure. Please discard Corporate Bulletin Number 05-06-01-034 (Section 06 - Engine).
--------------------------------------------------------------------------------
Condition
Some customers may comment on an engine oil leak.
Cause
Upon initial diagnosis, it may be determined that the leak is coming from the rear cover gasket. This condition may be caused by engine block porosity on the sealing surface.
Correction
Follow the steps for Oil Leak Diagnosis in SI to determine the source of the leak. If the leak has been diagnosed as coming from the rear cover assembly, remove the rear cover assembly and inspect for engine block porosity where the rear cover mates to the engine block. If porosity is found anywhere on the sealing surface, use the following procedure to apply RTV to repair the engine block porosity (refer to illustration below).
Important: Clean any residual oil from the block and cover before applying the sealant in the next step.
Wipe a small amount of RTV, P/N 12378521 (in Canada, use P/N 88901148) onto the surface using a plastic scraper to fill the porosity.
Remove any excess RTV material, especially from inside the high pressure oil passage (refer to #1 in the above illustration).
Allow the RTV to cure for 10 minutes.
Important: Be sure to follow the tightening specifications and sequence found in SI.
Reinstall the rear cover using a new gasket and follow installation instructions found in SI.
Parts Information
Part Number
Description
12574293
Gasket - Crankshaft Rear Oil Seal Housing
12378521 (U.S.)
88901148 (Canada)
Sealant
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
J7510
Oil Leak -- Rear Cover Area -- Porosity Repair
Corvette
- M/T
- A/T
5.9 hrs
5.4 hrs
SSR
5.4 hrs
TrailBlazer/Envoy/Rainier/Saab 9-7X (Canada)
- 2WD
- 4WD
5.7 hrs
6.5 hrs
GTO
- M/T
- A/T
10.2 hrs
10.5 hrs
Silverado/Silverado SS/Sierra
- M/T
- A/T
3.6 hrs
3.8 hrs
Grand Prix/Impala/Monte Carlo
5.7 hrs
Add
With skid plate
To clean parts over 48,000 km (30,000 mi)
0.2 hr
0.1-0.3 hr
Warranty Information (Saab U.S. Models)
For vehicles repaired under warranty, use:
Labor Operation
Description
Failed Object
Fault/Reason Code
Location Code
Warranty Type
Repair/Action Code
Labor Time
2161901
Replace part, Seal, End Plate V8 T-Truck
21619
57
0
01
01
6.5 hrs
Add
9821001
R&R Anti-Submarine (Skid) Plate
--
--
--
--
--
0.2 hr
Add
To clean parts over 48,000 km (30,000 mi)
--
--
--
--
--
0.1 to 0.3 hr in 99 time
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
© Copyright General Motors Corporation. All Rights Reserved.
--------------------------------------------------------------------------------
Document ID# 1811900
2004 Chevrolet SSR