Hummer H2. Manual - part 2222

3. Remove the mounting nuts (1).  

4. Remove the mounting bolts (3).  

5. Remove the isolators (2).  

Installation Procedure 

Fig. 25: Identifying Isolators 
Courtesy of GENERAL MOTORS CORP. 

1. Install the isolators (2).  

2. Install the mounting bolts (3). 

 

2004 Hummer H2 

2004 SUSPENSION Air Suspension - Hummer H2

  

3. Install the mounting nuts (1). 

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

4. Install the compressor. Refer to Compressor Automatic Level Control Replacement  

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

Control Air Replacement .  

COMPRESSOR ASSEMBLY AUTOMATIC LEVEL CONTROL AIR REPLACEMENT 

Removal Procedure 

1. Depressurize the air suspension system. Refer to Air Suspension Depressurization Procedure .  

2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.  

3. Support the compressor assembly with a suitable stand. 

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.

 

2004 Hummer H2 

2004 SUSPENSION Air Suspension - Hummer H2

  

Fig. 26: Air Spring Compressor Electrical Connector 
Courtesy of GENERAL MOTORS CORP. 

4. Disconnect the air inflator switch electrical connector.  

5. Disconnect the compressor electrical connector.  

6. Disconnect the ground strap. 

 

2004 Hummer H2 

2004 SUSPENSION Air Suspension - Hummer H2

  

Fig. 27: Rear Compressor Mounting Bolts 
Courtesy of GENERAL MOTORS CORP. 

7. Remove the rear compressor mounting bolts. 

 

2004 Hummer H2 

2004 SUSPENSION Air Suspension - Hummer H2