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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1490 (Suspension Control System - Suspension Leveling) >> Repair Instructions >> Air Suspension Depressurization Procedure >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to Fastener Notice in Cautions and Notices.
IMPORTANT: Check the air supply lines for deep scores or cuts. If the air supply lines are damage the lines must be replaced. Refer to AIR SUSPENSION AIR LINE REPLACEMENT   . 
  1. Tighten the air supply lines to the air compressor. Do not over tighten.

    Tighten 

    Tighten the air supply lines to the air compressor to 2.25 N.m (20 lb in).

  2. Install the air compressor to frame mounting bolts.

    Tighten 

    Tighten the air compressor mounting bolts to the frame to 25 N.m (18 lb ft).

  3. Lower the vehicle.
  4. Install the air suspension system fuse.
    Fig 1: Installing Air Compressor To Frame
    G01597489Courtesy of GENERAL MOTORS CORP.
  5. Start the vehicle and run for approximately 1 minute to ensure that the air suspension system is functioning properly.
  6. Check the D height. Refer to Trim Height Inspection Procedure   in Suspension General Diagnosis.
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