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Home >> Isuzu >> 2007 >> Ascender 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 325 (Suspension Control System - Automatic Level Control) >> Repair Instructions >> Air Spring Compressor Replacement >> Removal Procedure
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Removal Procedure

WARNING: This page is about a different car, the 2008 Isuzu Ascender, 2008 GMC Envoy, and 2008 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Air Compressor & Mounting Bolts
    GM731572Courtesy of GENERAL MOTORS CORP.
    CAUTION: A sudden release of pressure may cause personal injury or damage to the vehicle. The air suspension system is under pressure until the air supply lines are disconnected. Use the following precautions when servicing the air suspension system: 
    • Wear gloves, ear protection, and eye protection.
    • Wrap a clean cloth around the air supply lines.
    NOTE: Depressurize the air suspension system only after the rear axle is supported and is set between D- Height and Full Jounce.
    IMPORTANT: Remove the air suspension system fuse before working on the rear suspension components or the rear axle. Failure to remove the air suspension system fuse could cause the calibration of the air suspension leveling sensor to change and the air suspension system not to function properly.
  1. Remove the air suspension system fuse.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove the air spring compressor to the frame mounting bolts.
  4. Fig 2: Locating Air Spring Compressor
    GM747617Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the air inflator switch electrical connection, air supply lines, and air spring compressor vent hose from the air spring compressor.
  6. Fig 3: View Of Air Spring Compressor Components
    GM747618Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the air spring compressor electrical connection (2).
  8. IMPORTANT: Ensure the color on air supply lines match the color on the air spring compressor for reassembly.
  9. Disconnect the air supply lines (3) from the air spring compressor (1).
  10. Remove the air spring compressor from the vehicle.