GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 428783  Size: SH
  1. Lower the headliner in order to access the 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 drain spouts.
  4. Remove the tape from the drain hoses on the windshield pillars.
  5. Remove the front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement in Body Front End.
  6. Remove the front drain hoses from the inner wheelhouse of the vehicle.

Installation Procedure

  1. Install the drain hoses up through the inner wheelhouse to the sunroof module assembly.

  2. Object Number: 428783  Size: SH
  3. Secure the front drain hoses to the windshield pillars with new tape.
  4. Install the front wheelhouse liners. Refer to Front Wheelhouse Liner Replacement in Body Front End.
  5. Connect the drain hoses to the drain spouts on the sunroof module assembly.
  6. 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.

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