GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 428787  Size: SH
  1. Lower the headliner in order to access the rear drain hose connections. Refer to Headlining Trim Panel Replacement in Interior Trim.
  2. Cut the tie wraps from the drain hose spouts.
  3. Disconnect the drain hoses from the sunroof module assembly.
  4. Remove the interior moldings in order to access the drain hose retaining clips. Refer to Rear Quarter Upper Trim Panel Replacement in Interior Trim.
  5. Remove the upper portion of the rear drain hoses from the retaining clips.

  6. Object Number: 716753  Size: SH
  7. Remove the rear compartment side trim panels. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.
  8. Remove the rear lower drain hose (1) from the retaining clips.
  9. Remove the rear drain hose (1) from the vehicle.

Installation Procedure


    Object Number: 716753  Size: SH
  1. Route the rear drain hoses (1) down through the access hole in the side rail.
  2. Push the end of the rear drain hoses down to the rear compartment opening.
  3. Clip the rear lower drain hoses (1) into position on the grommet.

  4. Object Number: 428787  Size: SH
  5. Clip the rear upper drain hoses into position.
  6. Connect the rear drain hoses to the drain spouts on the sunroof module assembly.
  7. Secure the drain hoses to the drain spouts on the sunroof module assembly.
  8. Important: When installing the new drain hose tie wraps, position the tie wraps in order to maintain clearance between the tie wraps and the headliner.

  9. Secure the drain hoses to the sunroof module assembly drain spouts with new tie wraps.
  10. Install the headliner to the roof. Refer to Headlining Trim Panel Replacement in Interior Trim.