Hummer H2. Manual - part 1390

Fig. 17: Surge Tank Hose & Engine (Outlet) 
Courtesy of GENERAL MOTORS CORP. 

5. Reposition the surge tank outlet hose clamp (3) from the engine (2).  

6. Remove the surge tank outlet hose (6) from the engine (2). 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 18: Surge Tank Components 
Courtesy of GENERAL MOTORS CORP. 

7. Reposition the surge tank outlet hose clamp (5) from the surge tank (2).  

8. Remove the surge tank outlet hose (3) from the surge tank (2).  

9. Remove the surge tank outlet hose (3) from the vehicle.  

Installation Procedure 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 19: Surge Tank Components 
Courtesy of GENERAL MOTORS CORP. 

1. Install the surge tank outlet hose (3) to the vehicle.  

2. Install the surge tank outlet hose (3) to the surge tank (2).  

3. Reposition the surge tank outlet hose clamp (5) to the surge tank (2). 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 20: Surge Tank Hose & Engine (Outlet) 
Courtesy of GENERAL MOTORS CORP. 

4. Install the surge tank outlet hose (6) to the engine (2).  

5. Reposition the surge tank outlet hose clamp (3) to the engine (2).  

6. Connect the heater inlet hose to the heater core. 

7. Pull the heater inlet hose to ensure the connection. 

IMPORTANT: Firmly push the quick connect onto the heater core pipe until you hear an 

audible click.

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2