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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1433 (Sunroof System) >> Repair Instructions >> Sunroof Motor/Actuator Replacement (Old Style PEZ) >> Installation Procedure

Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Sunroof Motor/Actuator-To-Sunroof Module Assembly Screws
    GM752284Courtesy of GENERAL MOTORS CORP.
  1. Align the splines on the sunroof motor/actuator shaft with the drive gear on the sunroof module assembly.
  2. Install the sunroof motor/actuator (2) to the mounting bracket, ensuring that the sunroof motor/actuator is fully seated.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the screws (1) that retain the sunroof motor/actuator (2) to the mounting bracket.

    Tighten:  Tighten the sunroof motor/actuator screws to 3 N.m (27 lb in).

  4. Connect the sunroof motor/actuator wiring harness electrical connector.
  5. Install the tie strap retaining the sunroof motor/actuator wiring harness.
  6. Press and hold the open switch until the glass panel stalls at the hard stop. The glass panel then moves forward several millimeters. This position is called the soft stop or full open position.
  7. Release the switch.
  8. Press and hold the open switch within six seconds, continue holding until the glass panel moves to the closed position and stops.
  9. Release the switch.
  10. Install the headliner. Refer to Headliner Replacement (TrailBlazer, Envoy, Bravada) , Headliner Replacement (TrailBlazer EXT, Envoy XL) or Headliner Replacement (Envoy XUV) in Interior Trim.
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