Engine - END OF NEED FOR INFORMATION/FIELD FIX INFO.
ENGINEERING INFORMATIONBulletin No.: 08-06-01-016C
Date: June 15, 2009
Subject: EI08221 - Engine Oil Leak at Rear [Transmission End] of Engine (Reseal or Replace Oil Gallery Plug)
Models:
2007 Chevrolet Monte Carlo
2007-2008 Chevrolet Impala
Equipped with Engine RPOs LZE, LZ4, LZ8, LZ9 or LZG
Please Refer to GMVIS
Supercede:
This bulletin is being revised to end the need for engineering information and provide field fix information. Please discard Corporate Bulletin Number 08-06-01-016B (Section 06 - Engine).
Condition
Some customers may comment about an engine oil leak. Upon inspection, the technician may find that the oil leak appears to be coming from above the rear main seal or the oil pan gasket.
Cause
The oil passageway block plug located above the crankshaft at the rear of the engine block may not be tight.
Correction
Diagnose the engine oil leak by thoroughly cleaning the area, adding dye to the system and using a black light to identify the source of the leak. If any of the oil gallery plugs at the back of the engine block are leaking, proceed to the following steps.
1. Remove components as necessary in order to access and remove the leaking oil passageway plug.
2. Inspect the plug for any signs of damage and replace the plug if necessary.
3. If reusing the original plug, apply sealant to the threads before installing. Service replacement plugs come with a pre-applied sealant already on the threads.
4. Install the plug.
Tighten
Tighten the plug to 33 Nm (24 lb ft).
Part Information
Warranty Information
For vehicles repaired under warranty, use the table above.
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