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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 325 (Suspension Control System - Automatic Level Control) >> Repair Instructions >> Air Spring Leveling Sensor Replacement >> Installation Procedure
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Installation 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: View Of Rear Axle Upper Control Arm
    GM731569Courtesy of GENERAL MOTORS CORP.
  1. Install the air spring level sensor link to the upper control arm.
  2. Fig 2: View Of Air Spring Level Sensor
    GM731567Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: If not equipped, use a NEW anti-rotation bolt P/N 11569736.
  3. Loosely install sensor mounting bolts with the anti-rotation bolt in the right hand mounting hole.
  4. NOTE: Refer to Fastener Notice .
    IMPORTANT: Do not remove the air spring level sensor locating pin until the air spring level sensor has been properly mounted and aligned.
  5. While holding the body of the sensor, tighten the anti-rotation bolt first.

    Tighten:  Tighten the air spring level sensor frame mounting bolts to 8 N.m (71 lb in).

  6. Fig 3: View Of Air Spring Level Sensor Electrical Connector
    GM747619Courtesy of GENERAL MOTORS CORP.
  7. Connect the air spring level sensor electrical connector.
  8. Fig 4: View Of Air Spring Level Sensor Locating Pin
    GM747802Courtesy of GENERAL MOTORS CORP.
  9. Verify the pin can be removed and installed with ease to ensure the correct sensor installation.

    If the pin cannot be inserted with ease, loosen the sensor fasteners, adjust the sensor, and retighten the sensor fasteners so that the pin can be removed and installed with ease.

  10. NOTE: Failure to remove the air suspension auto level control sensor locating pin will cause damage to the air suspension auto level control sensor.
  11. Remove the air spring level sensor locating pin.
  12. Raise the vehicle off the jackstands and remove the jackstands from under the vehicle.
  13. Install the rear wheels. Refer to Tire and Wheel Removal and Installation .
  14. Lower the vehicle.
  15. Install the air suspension fuse.
  16. Turn the ignition key to the ON position to inflate the rear air springs.
  17. After two minutes, turn the ignition key to the OFF position.
  18. Recycle the ignition, if needed.
  19. Verify and record the D-height. Refer to Trim Height Specifications .