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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 448 (SUNROOF SYSTEM)REPAIR INSTRUCTIONSSUNROOF OPENING POSITION SWITCH REPLACEMENTINSTALLATION PROCEDURE
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

Installation Procedure

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Installation Procedure
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Important: 

The new SOPS comes with a position lock pin that is installed on top of the SOPS. This locks the timing gears in place. Do not remove this pin until after you have installed the SOPS and the actuator.

  1. Keeping the position lock pin in the new SOPS, position the SOPS switch over the drive cables and press down.

    If the SOPS does not slide into position, the ridges on the drive cable housings will not go into the grooves on the back of the SOPS. Lift each cable into the SOPS, and press down on the SOPS assembly.

    Fig 1: Installing SOPS Switch Over Drive Cables
    G01516270Courtesy of GENERAL MOTORS CORP.
  2. Install the SOPS screw (2) to the switch.

    Tighten 

    Tighten the SOPS screw to 2 N.m (18 lb in).

  3. Connect the electrical connector to the SOPS.
  4. Install the sunroof actuator. Refer to SUNROOF MOTOR/ACTUATOR REPLACEMENT  .
  5. Remove the position lock pin (1) or the 2 wires from the switch.
    Fig 2: Installing SOPS Screw And Connecting Electrical Connector
    G01516271Courtesy of GENERAL MOTORS CORP.
  6. Remove the 2 pins from the cable/cam mechanisms.
  7. Install the left and right front sunroof window panel screws.

    Tighten 

    Tighten the front sunroof window panel screws to 4 N.m (35 lb in).

  8. Install the sunroof module, but do not install the headliner until after you have tested the sunroof operation. Refer to SUNROOF MODULE ASSEMBLY REPLACEMENT  .
  9. Inspect the operation of the sunroof.
  10. Install the headliner. Refer to HEADLINER REPLACEMENT (AZTEK) or HEADLINER REPLACEMENT (RENDEZVOUS) .
    Fig 3: Removing Sunroof Timing Pins
    G01516272Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

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.