Hummer H2. Manual - part 1405

Fig. 77: Heater Inlet Hose 
Courtesy of GENERAL MOTORS CORP. 

14. Reposition the heater inlet hose clamp at the water pump.  

15. Remove the heater inlet hose from the water pump. 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 78: Water Pump & Bolt 
Courtesy of GENERAL MOTORS CORP. 

16. Remove the water pump bolts.  

17. Remove the water pump and gaskets.  

18. Discard the water pump gaskets.  

Installation Procedure 

IMPORTANT: All gaskets surfaces are to be free of oil or other foreign material during 

assembly.

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 79: Water Pump & Bolt 
Courtesy of GENERAL MOTORS CORP. 

1. Install the water pump and NEW gaskets.  

2. Install the water pump bolts. 

Tighten:  

1. Tighten the water pump bolts a first pass to 15 N.m (11 lb ft).  

2. Tighten the water pump bolts a final pass to 30 N.m (22 lb ft). 

NOTE:

Refer to Fastener Notice in Cautions and Notices.

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 80: Heater Inlet Hose 
Courtesy of GENERAL MOTORS CORP. 

3. Install the heater inlet hose to the water pump.  

4. Position the heater inlet hose clamp at the water pump. 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2