GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Park Avenue 🢒 Body and Accessories 🢒 Doors 🢒 Front Side Door Window Adjustment

Removal Procedure

    Caution: Disconnect the power window switch when working inside the driver door. When operated, the Express Up/Down Feature allows the door window to move very quickly, without stopping, which could cause personal injury.

  1. Place the door glass in the full-up position.
  2. Remove the trim panel. Refer to Front Side Door Trim Panel Replacement
  3. Remove the water deflector. Refer to Front Side Door Water Deflector Replacement
  4. Using a marker, draw a line on the glass across the header.
  5. Connect the power window switch.
  6. Lower the window approximately 50 mm (2 in).
  7. Disconnect the power window switch.
  8. Inspect the parallelism of the line to the header.
  9. Adjust the inner panel, if required.

    10. Object Number: 428135 Size: SH
  10. Loosen the cam adjusting screw (1).

    11. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  11. Adjust the door window parallel to the header.

    12. Tighten
    Tighten the screw to 9 N·m (72 lb in).

  12. Inspect the operation of the window.

Installation Procedure

    Object Number: 259086 Size: SH
  1. Install the water deflector (1). Refer to Front Side Door Water Deflector Replacement .
  2. Install the trim panel. Refer to Front Side Door Trim Panel Replacement .