CTS Coupe RWD V8-6.2L SC (2011)
GM P/N 12633579. Also, if porosity is found anywhere on the sealing surface of the engine block, use the following procedure to apply RTV to repair
the engine block porosity. Refer to the illustration below.
Important
Clean any residual oil from the block and cover before applying the sealant in the next step.
1. 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.
2. Remove any excess RTV material, especially from inside the high pressure oil passage. Refer to #1 in the above illustration.
3. The joint may be closed immediately after applying the RTV. Total joint time after the RTV has been applied must be under 20 minutes.
Important
Refer to Engine Rear Cover Replacement in SI and follow the tightening specifications and sequence.
4. Reinstall the engine rear cover using a new gasket and a new crankshaft rear main seal. Refer to Engine Rear Cover Replacement in SI.
Parts Information
Important
For Saab (U.S.) only, use P/N 88861206 - Engine Oil Dye (U.S.) or equivalent.
Warranty Information (excluding Saab U.S. Models)
For vehicles repaired under warranty, use:
