Hummer H2. Manual - part 1404

z

Throttle body  

z

Mass airflow/intake air temperature (MAF/IAT) sensor  

3. Remove the radiator inlet hose clip from the outlet duct.  

4. Remove the air cleaner outlet duct. 

Fig. 73: Vent Inlet Hose At Throttle Body 
Courtesy of GENERAL MOTORS CORP. 

5. Remove the radiator vent inlet hose from the radiator hose clips. 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 74: Inlet Hose & Water Pump (4.8, 5.3, & 6.0L) 
Courtesy of GENERAL MOTORS CORP. 

6. Reposition the inlet hose clamp at the water pump.  

7. Remove the inlet hose from the water pump.  

8. Remove the fan blade. Refer to Fan Replacement .  

9. Remove the accessory drive belt. Refer to Drive Belt Replacement - Accessory in Engine Mechanical - 

6.0L (LQ4). 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 75: Outlet Hose & Water Pump (4.8, 5.3, & 6.0L) 
Courtesy of GENERAL MOTORS CORP. 

10. Reposition the outlet hose clamp at the water pump.  

11. Remove the outlet hose from the water pump. 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 76: Surge Tank Outlet Hose 
Courtesy of GENERAL MOTORS CORP. 

12. Reposition the surge tank outlet hose clamp at the water pump.  

13. Remove the surge tank outlet hose from the water pump. 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2