Chevrolet Silverado / GMC Sierra. Manual - part 342
Fig. 387: View Of Engine Block Front Oil Gallery Plug
Courtesy of GENERAL MOTORS CORP.
7. Remove the engine block front oil gallery plug (101).
IMPORTANT: Remove the front oil gallery plug, only if service is required.
If the front oil gallery plug is removed, a NEW oil gallery plug
must be installed.
2008 Hummer H2
2008 ENGINE Engine Mechanical - 6.2L - H2
Fig. 388: Left Side Knock Sensor & Bolt
Courtesy of GENERAL MOTORS CORP.
8. Remove the left side knock sensor (718) and bolt (739).
2008 Hummer H2
2008 ENGINE Engine Mechanical - 6.2L - H2
Fig. 389: Right Side Knock Sensor & Bolt
Courtesy of GENERAL MOTORS CORP.
9. Remove the right side knock sensor (718) and bolt (739).
ENGINE BLOCK CLEANING AND INSPECTION
Tools Required
J 8087 Cylinder Bore Gage. See Special Tools.
2008 Hummer H2
2008 ENGINE Engine Mechanical - 6.2L - H2
J 42385-100 Head/Main Bolt Thread Repair Kit. See Special Tools.
Cleaning Procedure
Fig. 390: Main Bearing Caps
Courtesy of GENERAL MOTORS CORP.
NOTE:
Do not use a caustic solution to clean the aluminum engine block.
2008 Hummer H2
2008 ENGINE Engine Mechanical - 6.2L - H2