Hummer H2. Manual — part 1715

Fig. 64: Intake Manifold Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.

4. Install the intake manifold bolts.

Tighten:

1. Tighten the intake manifold bolts a first pass in sequence to 5 N.m (44 lb in).

2. Tighten the intake manifold bolts a final pass in sequence to 10 N.m (89 lb in).

NOTE:

Refer to Fastener Notice in Cautions and Notices.

2004 Hummer H2

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

Fig. 65: Top View Of Engine
Courtesy of GENERAL MOTORS CORP.

5. Install the EVAP purge solenoid vent tube to the solenoid (1) and vapor pipe.

2004 Hummer H2

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

Fig. 66: MAP Sensor & Intake Manifold
Courtesy of GENERAL MOTORS CORP.

6. Install the MAP sensor (1) to the intake manifold.

7. Route the electrical harness into position over the engine.

IMPORTANT: Lightly coat the MAP sensor seal with clean engine oil before installing.

2004 Hummer H2

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

Fig. 67: MAP Sensor & Knock Sensor Electrical Connectors
Courtesy of GENERAL MOTORS CORP.

8. Connect the knock sensor harness electrical connector to the intake manifold.

9. Connect the following electrical connectors.

z

MAP sensor (1)

z

Knock sensor (2)

10. Install the fuel injectors. Refer to Fuel Injector Replacement .

11. Install the throttle body. Refer to Throttle Body Assembly Replacement .

ENGINE VALLEY COVER REPLACEMENT

Removal Procedure

2004 Hummer H2

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