Hummer H2. Manual - part 1448

Fig. 84: Installing Fuel Tank Protective Shield 
Courtesy of GENERAL MOTORS CORP. 

15. Install the fuel tank protective shield. 

Tighten: Tighten fuel tank protective shield bolts to 25 N.m (18 lb ft). 

16. Lower the vehicle.  

17. Refill the fuel tank.  

18. Install the fuel filler cap.  

19. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure 

(Single Battery) in Engine Electrical.  

20. Use the following procedure in order to inspect for leaks: 

1. Turn ON the ignition, with the engine OFF, for 2 seconds.  

2. Turn OFF the ignition for 10 seconds. 

 

2004 Hummer H2 

2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2

  

3. Turn ON the ignition, with the engine OFF.  

4. Inspect for fuel leaks.  

21. Install the engine sight shield. Refer to Engine Sight Shield Replacement (6.0L (LQ4)) in Engine 

Mechanical.  

FUEL TANK PRESSURE SENSOR REPLACEMENT 

Removal Procedure 

1. Remove the fuel tank. Refer to Fuel Tank Replacement . 

Fig. 85: Fuel Sender & Fuel Pressure Sensor Electrical Connectors 
Courtesy of GENERAL MOTORS CORP. 

2. Remove the fuel pressure sensor.  

 

2004 Hummer H2 

2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2

  

Installation Procedure 

Fig. 86: Fuel Sender & Fuel Pressure Sensor Electrical Connectors 
Courtesy of GENERAL MOTORS CORP. 

1. Install the fuel pressure sensor.  

2. Install the fuel tank. Refer to Fuel Tank Replacement .  

FUEL LEVEL SENSOR REPLACEMENT 

Removal Procedure 

 

2004 Hummer H2 

2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2

  

Fig. 87: Identifying Fuel Sender Assembly 
Courtesy of GENERAL MOTORS CORP. 

1. Remove the fuel sender. Refer to Fuel Sender Assembly Replacement .  

2. Place the fuel sender on a clean work surface.  

3. Disconnect the fuel level sensor electrical connector from the module connector. 

 

2004 Hummer H2 

2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2