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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 213 (SUNROOF SYSTEM)REPAIR INSTRUCTIONSSUNROOF WINDOW REPLACEMENTINSTALLATION PROCEDURE
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Installation Procedure

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Installation Procedure
WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Sunroof, Housing And Adjusting Screws
    GM468350Courtesy of GENERAL MOTORS CORP.
  1. Position the sunroof window (3) into the opening, with the window trade mark pointing rearward.
  2. Install the sunroof window screws (1).
  3. Finger tighten the screws, do not tighten.
  4. Carefully close the sunroof window from the vent position to the full closed position.
    5. Fig 2: Identifying Sunroof Panel Side Opening Closeout Cover
    GM786923Courtesy of GENERAL MOTORS CORP.
  5. Adjust the sunroof window. Refer to Sunroof Window Height and Opening Fit Adjustment .
  6. Connect the sunroof panel side opening closeout covers (2) to the sunroof window clips.
  7. Snap the sunroof panel side opening closeout covers into the sunroof window retention clips.
  8. Close the sunshade.
  9. Cycle the sunroof window to ensure proper operation and fit.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.