GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2005 🢒 H2 🢒 Suspension 🢒 Air Suspension 🢒 Valve Automatic Level Control Solenoid Replacement

Valve Automatic Level Control Solenoid Replacement Single Compressor

Removal Procedure

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.

  1. Remove the compressor assembly from the vehicle and place on a bench. Refer to Compressor Assembly Automatic Level Control Air Replacement .

    2. Object Number: 1234313 Size: SH
  2. Unlock and disconnect the electrical connector from the pressure transducer/sensor by turning the connection counterclockwise.

    3. Important: Note the port location of the air lines for reassembly.

  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

    Object Number: 1234313 Size: SH
  1. Install the solenoid assembly (1).

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the mounting screws (2).

    3. 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 .

Valve Automatic Level Control Solenoid Replacement Dual Compressors

Removal Procedure

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.


    Object Number: 1455955 Size: MH
  1. Remove the compressor assembly from the vehicle and place on a bench. Refer to Compressor Assembly Automatic Level Control Air Replacement .
  2. Unlock and disconnect the electrical connector from the pressure transducer/sensor by turning the connection counterclockwise.

    3. Important: Note the port location of the air lines for reassembly.

  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.
  6. Remove the solenoid assembly (1).

Installation Procedure

    Object Number: 1455955 Size: MH
  1. Install the solenoid assembly (1).

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the mounting screws.

    3. 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 .