Hummer H2. Manual - part 1476

Tighten: Tighten the bolt to 25 N.m (18 lb ft).

3. Connect the CMP sensor electrical connector.  

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

Mechanical 6.0L.  

KNOCK SENSOR (KS) REPLACEMENT 

Removal Procedure 

Fig. 179: Knock Sensor Wiring Harness Assembly

 

2004 Hummer H2 

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

  

Courtesy of GENERAL MOTORS CORP.

1. Remove the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical.  

2. Remove the knock sensor wiring harness assembly. 

Fig. 180: Identifying Knock Sensors 
Courtesy of GENERAL MOTORS CORP. 

3. Remove the knock sensor (KS).  

Installation Procedure 

 

2004 Hummer H2 

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

  

Fig. 181: Identifying Knock Sensors 
Courtesy of GENERAL MOTORS CORP. 

1. Install the knock sensor. 

Tighten: Torque the sensor to 20 N.m (15 lb ft).

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

  

Fig. 182: Knock Sensor Wiring Harness Assembly 
Courtesy of GENERAL MOTORS CORP. 

2. Install the knock sensor wiring harness assembly.  

3. Install the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical.  

AIR CLEANER ELEMENT REPLACEMENT 

Removal Procedure 

 

2004 Hummer H2 

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