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 hoses.
  3. Disconnect the drain hoses from the sunroof module assembly.
  4. Remove the rear interior trim panels in order to access the drain hose retaining clips. Refer to Rear Quarter Upper Trim Panel Replacement in Interior Trim.
  5. Disconnect the upper portion of the rear drain hoses from the retaining clips.

  6. Object Number: 716751  Size: SH
  7. Remove the rear compartment side trim panels. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.
  8. Disconnect the lower portion of the rear drain hoses from the retaining clips.
  9. Remove the rear drain hose (1) from the vehicle.

Installation Procedure


    Object Number: 716751  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. Attach the lower portion of the rear drain hoses into the grommet.
  4. Install the rear compartment side trim panels. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.

  5. Object Number: 428787  Size: SH
  6. Clip the upper portion of the rear drain hoses into position.
  7. Connect 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 with new tie wraps.
  10. Install the headliner to the roof. Refer to Headlining Trim Panel Replacement in Interior Trim.