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Home >> Chevrolet >> 2002 >> TrailBlazer 4WD >> Repair and Diagnosis >> Suspension >> Electronic Suspension System - Automatic Level Control >> Repair Instructions >> Air Spring Leveling Sensor Replacement >> Removal Procedure
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Removal Procedure

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. Ensure that the vehicle is parked on level surface.
  3. Inspect tires for proper tire pressure.
  4. Inspect the air suspension system components for damage or defects.
  5. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
  6. Remove the rear tire and wheels. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
  7. Support the rear axle and set the rear axle to proper D height. Refer to TRIM HEIGHT SPECIFICATIONS in Suspension General Diagnosis.
  8. Disconnect the air spring level sensor link from the upper control arm.
    Fig 1: Removing/Installing Air Spring Level Sensor Link
    GM731569Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the air spring level sensor electrical connector.
    Fig 2: Disconnecting/Connecting Air Spring Level Sensor Electrical Connector
    GM747619Courtesy of GENERAL MOTORS CORP.
  10. Remove the air spring level sensor to the frame mounting bolts.
  11. Remove the air spring level sensor.
    Fig 3: Removing/Installing Air Spring Level Sensor
    GM731567Courtesy of GENERAL MOTORS CORP.
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