Hummer H2. Manual — part 1391

Fig. 21: Heater Hose & Mounting Clip
Courtesy of GENERAL MOTORS CORP.

8. Install the heater hose (3) to the mounting clip (2).

2004 Hummer H2

2004 ENGINE Engine Cooling - Hummer H2

Fig. 22: Identifying Heater Hose To Heater Core Outlet
Courtesy of GENERAL MOTORS CORP.

9. Connect the surge tank outlet hose to the heater core outlet pipe.

10. Pull the surge tank outlet hose to ensure the connection.

11. Install the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement

in Engine Controls - 4.8L, 5.3L and 6.0L.

12. Fill the cooling system. Refer to Draining and Filling Cooling System .

RADIATOR HOSE REPLACEMENT - INLET

Removal Procedure

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

1. Drain the cooling system. Refer to Draining and Filling Cooling System .

2. Remove the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct

Replacement in Engine Controls - 4.8L, 5.3L and 6.0L.

Fig. 23: Radiator Hose & Engine (Inlet)
Courtesy of GENERAL MOTORS CORP.

3. Reposition the radiator inlet hose clamp (3) from the engine (1).

4. Remove the radiator inlet hose (2) from the engine (1).

5. Remove the radiator inlet hose (4) from the mounting clip (3).

2004 Hummer H2

2004 ENGINE Engine Cooling - Hummer H2

Fig. 24: Radiator Hose & Radiator (Inlet)
Courtesy of GENERAL MOTORS CORP.

6. Reposition the radiator inlet hose clamp (5) from the radiator (6).

7. Remove the radiator inlet hose (4) from the radiator (6).

8. Remove the inlet hose from the vehicle.

Installation Procedure

2004 Hummer H2

2004 ENGINE Engine Cooling - Hummer H2