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Home >> Buick >> 2002 >> LeSabre Custom, 4T65E/M15 >> Repair and Diagnosis >> Suspension >> Electronic Suspension System - Automatic Level Control >> Repair Instructions >> Air Compressor Replacement >> Installation Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Installation Procedure

CAUTION: 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.
  1. Install the two brackets on the air compressor with two screws. Tighten two screws to 7 N.m (62 lb in).
    2. Fig 1: Installing Two Brackets On Air Compressor With Two Screws
    G01770157Courtesy of GENERAL MOTORS CORP.
  2. Connect the air hose to the air compressor at two places.
    3. Fig 2: Connecting Air Hose To Air Compressor At Two Places
    G01770158Courtesy of GENERAL MOTORS CORP.
  3. Install the air dryer on the air compressor. Refer to AUTOMATIC LEVEL CONTROL AIR DRYER REPLACEMENT .
  4. Install the air compressor assembly onto the bracket with three bolts. Tighten three bolts to 3 N.m (26 lb in).
    Fig 3: Installing Air Compressor Assembly Onto Bracket With Three Bolts
    G01770159Courtesy of GENERAL MOTORS CORP.
    NOTE: Do not install the third heat shield bolt. It must be installed after the air tube is connected.
  5. Install the heat shield on the air compressor bracket with two bolts. Tighten the two bolts to 4 N.m (35 lb in).
    6. Fig 4: Installing Heat Shield On Air Compressor Bracket With Two Bolts
    G01770160Courtesy of GENERAL MOTORS CORP.
  6. Install the air compressor connector to the connector anchor.
  7. Install the air compressor assembly on the vehicle with two nuts and a bolt.
    • Tighten the bolt to 9 N.m (80 lb in).
    • Tighten the two nuts to 9 N.m (80 lb in).
    8. Fig 5: Installing Air Compressor Assembly On Vehicle With Two Nuts & A Bolt
    G01770161Courtesy of GENERAL MOTORS CORP.
  8. Connect the harness connector to the air compressor connector.
  9. Install the intake air filter on the vehicle.
  10. Connect the air tube to the air dryer.
    11. Fig 6: Connecting Air Tube To Air Dryer
    G01770162Courtesy of GENERAL MOTORS CORP.
  11. Connect the air tube and the harness tie to the air compressor bracket with the bolt. Tighten the bolt to 4 N.m (35 lb in).
  12. Install the right rear fascia extension. Refer to FASCIA EXTENSION REPLACEMENT - REAR in Bumpers.
  13. Install the right rear wheel. Refer to TIRE & WHEEL REMOVAL & INSTALLATION in Tires and Wheels.
    NOTE: Before driving the vehicle, turn the ignition on and wait approximately 45 seconds. This will ensure that the air adjustable shock absorbers are filled with residual pressure.
  14. Lower the vehicle.
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