GM Service Manual Online
For 1990-2009 cars only

Preparation Procedure


    Object Number: 239309  Size: SH
  1. Park the vehicle on a flat surface.
  2. Inspect the fit of the door window to the weatherstrips.
  3. Inspect the fit of the sunroof window to the roof panel.
  4. Inspect the windshield reveal molding.
  5. Perform a generalized water test using a test stand. This will aid you in determining where to perform a localized test.