GM Service Manual Online
For 1990-2009 cars only
  1. Trim the reveal molding from the shank in the area of the leak.
  2. Tape the molding to the window away from the leak area.
  3. Apply water to the leak area in order to determine the extent of the leak.
  4. Carefully push the glass outward in the location of the leak.
  5. Mark the location of the leak on the glass with a grease pencil.
  6. Clean dirt or foreign material from the leak area with water.
  7. Dry the area with an air hose.
  8. Trim the uneven edge of the adhesive material from the pinchweld flange at the leak point and 8 mm (0.315 in) on both sides of the leak.
  9. • Use a sharp knife.
    • Keep the blade of the knife flat against the glass edge and bottomed out on the flat pinchweld flange in order to trim the adhesive.

    Object Number: 301118  Size: SH
  10. Prime the affected area with the primer supplied in the GM Urethane Kit GM P/N 12346248. Agitate the primer prior to use.
  11. Apply the adhesive material to the pinchweld in the area that was trimmed.
  12. Work the adhesive material into the joint of the leak area using a flat-blade tool.
  13. Test the area for leaks using a light steady stream of warm or hot water.
  14. • Do not run a heavy stream of water directly onto the freshly applied adhesive.
    • If any leaks are found, work additional adhesive into that area.
  15. Reinstall the reveal molding by embedding the bottom of the molding in the urethane.
  16. Tape the molding into place until the adhesive is completely cured.