Hummer H2. Manual - part 1467

order to avoid possible contamination of the fuel system. 

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

7. Remove the rear EVAP pipe from the fuel sender, the fuel tank roll over valve and the fuel tank clips.  

8. Cap the fuel sender EVAP pipe and the fuel tank roll over valve.  

Installation Procedure 

1. Remove the caps from the fuel sender EVAP pipe and the fuel tank roll over valve.  

2. Connect the rear EVAP pipe to the fuel sender, the fuel tank roll over valve, and the fuel tank clips. 

Fig. 147: Fuel Tank Straps & Attaching Bolts 
Courtesy of GENERAL MOTORS CORP.

 

2004 Hummer H2 

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

  

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

4. Lower the vehicle.  

5. Refill the fuel tank.  

6. Connect the negative battery cable.  

7. Tighten the fuel filler cap.  

8. Inspect for leaks. 

1. Turn ON the ignition for 2 seconds.  

2. Turn OFF the ignition for 10 seconds.  

3. Turn ON the ignition.  

4. Inspect for fuel leaks.  

EVAPORATIVE EMISSION (EVAP) CANISTER REPLACEMENT 

Removal Procedure 

 

2004 Hummer H2 

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

  

Fig. 148: Chassis Fuel Feed Hose & Fuel Filter 
Courtesy of GENERAL MOTORS CORP. 

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.  

2. Disconnect EVAP solenoid electrical connector.  

3. Remove the evaporative emission (EVAP) canister mount bolts. 

 

2004 Hummer H2 

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

  

Fig. 149: Vent Pipe & EVAP Canister Vent Valve Electrical Connector 
Courtesy of GENERAL MOTORS CORP. 

4. Disconnect the pipes at the EVAP canister.  

5. Remove the EVAP canister from the vehicle.  

Installation Procedure 

 

2004 Hummer H2 

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