Hummer H2. Manual - part 1436

Mechanical.  

2. Remove the engine sight shield bracket bolts. Position the bracket to the side  

3. Disconnect the manifold absolute pressure (MAP) sensor electrical connector. 

Fig. 43: MAP Sensor & Intake Manifold 
Courtesy of GENERAL MOTORS CORP. 

4. Remove the MAP sensor (1) from the intake manifold.  

Installation Procedure 

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

sensor.

 

2004 Hummer H2 

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

  

Fig. 44: MAP Sensor & Intake Manifold 
Courtesy of GENERAL MOTORS CORP. 

1. Install the MAP sensor (1). Push the MAP sensor down in order to engage the sensor into the retainer. 

 

2004 Hummer H2 

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

  

Fig. 45: View Of Top Engine Cover 
Courtesy of GENERAL MOTORS CORP. 

2. Connect the MAP sensor electrical connector.  

3. Position the engine harness and sight shield bracket to the intake manifold. 

NOTE:

Refer to Fastener Notice in Cautions and Notices.

 

2004 Hummer H2 

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

  

4. Install the engine sight shield bracket bolts. 

Tighten: Tighten the bracket bolts to 10 N.m (89 lb in). 

5. Install the engine sight shield. Refer to Engine Sight Shield Replacement (6.0L (LQ4)) in Engine 

Mechanical.  

HEATED OXYGEN SENSOR (HO2S) REPLACEMENT BANK 1 SENSOR 1 

Tools Required 

J 39194-B Oxygen Sensor Wrench. See Special Tools and Equipment . 

Removal Procedure 

1. Raise the vehicle. 

CAUTION: Refer to Vehicle Lifting Caution in Cautions and Notices.

 

2004 Hummer H2 

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