Hummer H2. Manual — part 1775

Fig. 289: Manifold, Heat Shield & Bolts (Right)
Courtesy of GENERAL MOTORS CORP.

4. Remove the heat shield (603) and bolts (604) from the manifold (600), if required.

WATER PUMP REMOVAL

2004 Hummer H2

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

Fig. 290: Water Pump, Bolts & Gaskets
Courtesy of GENERAL MOTORS CORP.

1. Remove the water pump bolts.

2. Remove the water pump and gaskets.

3. Discard the water pump gaskets.

THROTTLE BODY REMOVAL

2004 Hummer H2

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

Fig. 291: Throttle Body & Nuts
Courtesy of GENERAL MOTORS CORP.

1. Remove the electrical wire harness connectors from the throttle body.

2. Remove the engine coolant air bleed hose and clamp.

3. Remove the throttle body nuts.

4. Remove the throttle body.

IMPORTANT: The intake manifold, throttle body, fuel injection rail, and fuel injectors

may be removed as an assembly. If not servicing the individual
components, remove the manifold as a complete assembly.

2004 Hummer H2

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2

Fig. 292: Throttle Body Gasket
Courtesy of GENERAL MOTORS CORP.

5. Remove the throttle body gasket (509).

6. Discard the gasket.

7. Remove the throttle body studs, if required.

FUEL RAIL AND INJECTORS REMOVAL

2004 Hummer H2

2004 ENGINE Engine Mechanical - 4.8L, 5.3L, and 6.0L - Hummer H2