Hummer H2. Manual — part 1445

Fig. 70: Pulling Connection Apart (Plastic Collar)
Courtesy of GENERAL MOTORS CORP.

4. Pull the connection apart.

Installation Procedure

Fig. 71: Oiling Male Pipe End (Plastic Collar)
Courtesy of GENERAL MOTORS CORP.

1. Apply a few drops of clean engine oil to the male fuel pipe end.

CAUTION: Refer to Fuel Pipe Fitting Caution in Cautions and Notices.

2004 Hummer H2

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

Fig. 72: Connecting Quick-Connect Fittings (Plastic Collar)
Courtesy of GENERAL MOTORS CORP.

2. Push both sides of the quick-connect fitting together in order to cause the retaining tabs to snap into place.

Fig. 73: Ensuring Secure Connection (Plastic Collar)
Courtesy of GENERAL MOTORS CORP.

3. Once installed, pull on both sides of the quick-connect fitting in order to make sure the connection is

2004 Hummer H2

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

secure.

FUEL TANK DRAINING PROCEDURE

Fig. 74: Fuel Fill Hose & Hose Clamps
Courtesy of GENERAL MOTORS CORP.

1. Loosen the fuel filler cap in order to relieve the fuel tank vapor pressure.

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

CAUTION: Refer to Gasoline/Gasoline Vapors Caution in Cautions and Notices.

2004 Hummer H2

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

3. Loosen the fuel fill hose clamp.

4. Disconnect the fuel fill hose from the fuel fill pipe.

5. Use a hand or air operated pump device in order to drain as much fuel through the fuel fill hose as

possible.

FUEL TANK REPLACEMENT

Removal Procedure

Fig. 75: Fuel Fill Hose & Hose Clamps
Courtesy of GENERAL MOTORS CORP.

2004 Hummer H2

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