Hummer H2. Manual — part 2219

separate the connection at the sensor.

Fig. 15: Air Spring Level Sensor
Courtesy of GENERAL MOTORS CORP.

6. Remove the air spring level sensor to the frame mounting bolts.

7. Remove the air spring level sensor.

Installation Procedure

2004 Hummer H2

2004 SUSPENSION Air Suspension - Hummer H2

Fig. 16: Air Spring Level Sensor
Courtesy of GENERAL MOTORS CORP.

1. Install the air spring level sensor to the frame.

2. Install the air spring level sensor to the frame mounting bolts.

Tighten: Tighten the air spring level sensor to the frame mounting bolts to 8.5 N.m (75 lb in).

3. Connect the air spring level sensor electrical connector located on the frame.

NOTE:

Refer to Fastener Notice in Cautions and Notices.

2004 Hummer H2

2004 SUSPENSION Air Suspension - Hummer H2

Fig. 17: Air Spring Level Sensor Link
Courtesy of GENERAL MOTORS CORP.

4. Install the air spring level sensor link to the upper control arm.

Tighten: Tighten the bolt to 17 N.m (13 lb ft).

5. Remove the rear axle support.

6. Install the rear tire and wheels. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

7. Lower the vehicle.

8. Start the vehicle and run for approximately 2 minutes to ensure that the air spring leveling system is

functioning properly.

9. Verify the D height. Refer to Trim Height Inspection Procedure in Suspension General Diagnosis.

VALVE AUTOMATIC LEVEL CONTROL SOLENOID REPLACEMENT

Removal Procedure

2004 Hummer H2

2004 SUSPENSION Air Suspension - Hummer H2

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

Assembly Automatic Level Control Air Replacement .

Fig. 18: Solenoid Assembly
Courtesy of GENERAL MOTORS CORP.

2. Unlock and disconnect the electrical connector from the pressure transducer/sensor by turning the

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