Chevrolet Silverado / GMC Sierra. Manual

Fig. 235: Identifying Flywheel Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.

4. Install the engine flywheel bolts.

Tighten:

1. Tighten the engine flywheel bolts a first pass in sequence to 20 N.m (15 lb ft).

NOTE:

Refer to Fastener Notice .

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

2. Tighten the engine flywheel bolts a second pass in sequence to 50 N.m (37 lb ft).

3. Tighten the engine flywheel bolts a final pass in sequence to 100 N.m (74 lb ft).

5. Install the automatic transmission. Refer to Transmission Replacement .

ENGINE REPLACEMENT

Special Tools

J 41798 Engine Lift Bracket. See Special Tools.

J 21366 Convert Holding Strap. See Special Tools.

Removal Procedure

1. Remove the hood. Refer to Hood Replacement .

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 236: Hood Latch Fasteners
Courtesy of GENERAL MOTORS CORP.

2. Remove hood latch (1) from cowl.

3. Leaving the A/C compressor lines connected remove the condenser mounting bolts and

secure to frame rail.

4. Remove the upper radiator support. Refer to Radiator Support Replacement .

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 237: View Of Inlet Hose To Water Pump
Courtesy of GENERAL MOTORS CORP.

5. Reposition the radiator inlet hose clamp at the water pump.

6. Remove the radiator inlet hose from the water pump.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Chevrolet Silverado / GMC Sierra. Manual - part 302