Hummer H2. Manual - part 1794

Fig. 363: Engine Block Left Rear Coolant Drain Hole Plug 
Courtesy of GENERAL MOTORS CORP. 

4. Remove the engine block left front coolant drain hole plug, if applicable. 

 

2004 Hummer H2 

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

  

Fig. 364: Engine Block Left Front Oil Gallery Plug 
Courtesy of GENERAL MOTORS CORP. 

5. Remove the engine block left front oil gallery plug. 

 

2004 Hummer H2 

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

  

Fig. 365: Engine Block Left Rear Oil Gallery Plug 
Courtesy of GENERAL MOTORS CORP. 

6. Remove the engine block left rear oil gallery plug.  

7. Inspect the block plug sealing washers. 

If the block plug and heater sealing washers are not damaged, they may be used during assembly.

 

2004 Hummer H2 

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

  

 

2004 Hummer H2 

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