GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Sonoma Pickup - 2WD 🢒 Suspension 🢒 Automatic Level Control 🢒 Automatic Level Control Air Compressor Head Replacement

Removal Procedure

    Object Number: 187229 Size: SH
  1. Remove the automatic level control air dryer from the automatic level control air compressor. Refer to Automatic Level Control Air Dryer Replacement .
  2. Remove the wiring terminals B and C (1) from the automatic level control air compressor electrical connector.
  3. Remove the automatic level control air compressor head retaining bolts.
  4. Remove the automatic level control air compressor head (2) from the automatic level control air compressor.
  5. Remove the O-ring (3) from the automatic level control air compressor.
  6. Remove the automatic level control air compressor head wires from the conduit and the tie straps.

Installation Procedure

    Object Number: 187229 Size: SH
  1. Route the automatic level control air compressor head wires through the tie strap and the conduit.
  2. Install the O-ring (3) to the automatic level control air compressor.
  3. Install the automatic level control air compressor head (2) to the automatic level control air compressor.

    4. Object Number: 187233 Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the automatic level control air compressor head retaining bolts.

    5. Tighten
    Tighten the automatic level control air compressor head bolts to 6 N·m (53 lb in).

  5. Install the wiring to the B and the C (1) terminals on the automatic level control air compressor electrical connector.
  6. Install the automatic level control air dryer to the automatic level control air compressor. Refer to Automatic Level Control Air Dryer Replacement .