Hummer H2. Manual - part 2220

connection counter clockwise. 

3. Remove the air lines. Refer to Air Suspension Air Line Replacement .  

4. Disconnect and remove the pigtail harness from the compressor assembly mounting bracket.  

5. Remove the mounting screws (2).  

6. Remove the solenoid assembly (1).  

Installation Procedure 

IMPORTANT: Note the port location of the air lines for reassembly.

 

2004 Hummer H2 

2004 SUSPENSION Air Suspension - Hummer H2

  

Fig. 19: Solenoid Assembly 
Courtesy of GENERAL MOTORS CORP. 

1. Install the solenoid assembly (1). 

2. Install the mounting screws (2). 

Tighten: Tighten the screws to 5.0 N.m (44 lb in). 

3. Install and connect the pigtail harness to the compressor assembly mounting bracket.  

4. Install the air lines. Refer to Air Suspension Air Line Replacement .  

5. Connect and lock the electrical connector to the pressure transducer/sensor by turning the connection 

clockwise.  

6. Install the compressor assembly to the vehicle. Refer to Compressor Assembly Automatic Level 

Control Air Replacement .  

DRYER AUTOMATIC LEVEL CONTROL REPLACEMENT 

Removal Procedure 

1. Remove the compressor assembly from the vehicle and place on a bench. Refer to Compressor 

Assembly Automatic Level Control Air Replacement . 

NOTE:

Refer to Fastener Notice in Cautions and Notices.

CAUTION: Do NOT remove an air supply pipe in an attempt to depressurize the air 

suspension. Always follow the Air Suspension Depressurization 
Procedure in Air Suspension. Failure to follow this procedure may cause 
personal injury or damage to the vehicle.

IMPORTANT: Note the port location of the air lines for reassembly.

 

2004 Hummer H2 

2004 SUSPENSION Air Suspension - Hummer H2

  

Fig. 20: Dryer Assembly 
Courtesy of GENERAL MOTORS CORP. 

2. Remove the air lines. Refer to Air Suspension Air Line Replacement .  

3. Remove the mounting nuts (1).  

4. Remove the dryer assembly (2).  

Installation Procedure 

 

2004 Hummer H2 

2004 SUSPENSION Air Suspension - Hummer H2

  

Fig. 21: Dryer Assembly 
Courtesy of GENERAL MOTORS CORP. 

1. Install the dryer assembly (2). 

2. Install the mounting nuts (1). 

Tighten: Tighten the nuts to 12 N.m (106 lb in).

NOTE:

Refer to Fastener Notice in Cautions and Notices.

 

2004 Hummer H2 

2004 SUSPENSION Air Suspension - Hummer H2