Hummer H2. Manual - part 1880

Fig. 672: View Of Intake Manifold 
Courtesy of GENERAL MOTORS CORP. 

2. Install the intake manifold.  

3. Apply a 5 mm (0.20 in) band of threadlock GM P/N 12345382 (Canadian P/N 10953489) or equivalent to 

the threads of the intake manifold bolts. Refer to Sealers, Adhesives, and Lubricants . 

 

2004 Hummer H2 

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

  

Fig. 673: Intake Manifold Bolt Tightening Sequence 
Courtesy of GENERAL MOTORS CORP. 

4. Install the intake manifold bolts. 

Tighten:  

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

2. Tighten intake manifold bolts 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. 674: View Of MAP Sensor 
Courtesy of GENERAL MOTORS CORP. 

5. Install the manifold absolute pressure (MAP) sensor (714), if previously removed. 

The electrical connector end of the sensor should be facing the front of the engine. 

 

2004 Hummer H2 

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

  

Fig. 675: Identifying PCV Hose 
Courtesy of GENERAL MOTORS CORP. 

6. Install the positive crankcase ventilation (PCV) dirty air hose.  

7. Install the engine coolant air bleed hose and clamp onto the throttle body. 

 

2004 Hummer H2 

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