Hummer H2. Manual - part 1755

Fig. 212: 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).  

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

NOTE:

Refer to Fastener Notice in Cautions and Notices.

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

  

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 in Automatic Transmission - 

4L60-E.  

ENGINE REPLACEMENT 

Tools Required 

z

J 41798 Engine Lift Bracket. See Special Tools and Equipment .  

z

J 21366 Convert Holding Strap. See Special Tools and Equipment .  

Removal Procedure 

1. Remove the hood. Refer to Hood Replacement in Body Front End. 

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

  

Fig. 213: Hood Latch & Cowl 
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 in Body Front End. 

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

  

Fig. 214: Radiator Inlet Hose & Water Pump (4.8, 5.3, & 6.0L)
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. 

Fig. 215: Radiator Outlet Hose & Water Pump 
Courtesy of GENERAL MOTORS CORP.

 

2004 Hummer H2 

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2