Hummer H2. Manual - part 1435

Fig. 39: MAF/IAT Sensor & Air Cleaner Assembly
Courtesy of GENERAL MOTORS CORP. 

1. Remove air intake resonator. Refer to Air Cleaner Resonator Outlet Duct Replacement .  

2. Disconnect the MAF/IAT sensor electrical connector.  

3. Loosen the clamp securing the MAF/IAT sensor to the air cleaner housing.  

4. Remove the MAF/IAT sensor from the air cleaner assembly.  

Installation Procedure 

IMPORTANT: The embossed arrow on the MAF/IAT sensor indicates the proper air flow 

direction. The arrow must point toward the engine.

 

2004 Hummer H2 

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

  

Fig. 40: Locating Air Flow Direction Arrow On MAF/IAT Sensor 
Courtesy of GENERAL MOTORS CORP. 

1. Locate the air flow direction arrow (2) on the MAF/IAT sensor. 

 

2004 Hummer H2 

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

  

Fig. 41: MAF/IAT Sensor & Air Cleaner Assembly 
Courtesy of GENERAL MOTORS CORP. 

2. Install the MAF/IAT sensor on to the air cleaner housing.  

3. Tighten the clamp securing the MAF/IAT sensor to the air cleaner housing.  

4. Connect the MAF/IAT electrical connector.  

5. Install air intake resonator. Refer to Air Cleaner Resonator Outlet Duct Replacement . 

 

2004 Hummer H2 

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

  

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REPLACEMENT

Removal Procedure 

Fig. 42: View Of Top Engine Cover 
Courtesy of GENERAL MOTORS CORP. 

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

 

2004 Hummer H2 

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