GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.

  2. Object Number: 740780  Size: SH
  3. Pull back the trunk carpeting away from the sides of the trunk to expose the sun roof drain hose (1).

  4. Object Number: 719638  Size: SH
  5. Pull the outlet out of the quarter panel drain hole.

  6. Object Number: 719642  Size: SH
  7. Separate the outlet from the sunroof drain hose.

  8. Object Number: 719821  Size: SH
  9. Release the sunroof drain hose from the retaining clip along the quarter panel.

  10. Object Number: 740786  Size: SH
  11. Disconnect the sunroof drain hose (1) from the sun roof rear drain port.

  12. Object Number: 719678  Size: SH
  13. Release the sunroof drain hose from the retaining clip along the rear pillar.
  14. Remove the rear sunroof drain hose through the rear compartment access hole, located between the seat belt retractor and the rear window.

Installation Procedure

  1. Install the sunroof drain hose into the rear compartment through the access hole.

  2. Object Number: 719678  Size: SH
  3. Press the sunroof drain hose into the retaining clip along the rear pillar.

  4. Object Number: 740786  Size: SH
  5. Connect the sunroof drain hose (1) to the sunroof rear drain port.

  6. Object Number: 719821  Size: SH
  7. Press the sunroof drain hose into the retaining clip along the quarter panel.

  8. Object Number: 719642  Size: SH
  9. Connect the sunroof drain hose to the drain hose outlet.

  10. Object Number: 740780  Size: SH
  11. Press the sunroof drain hose (1) outlet into the quarter panel drain hole.
  12. Check the sunroof drain hose for play. Secure the drain hose to the quarter panel or roof with 3M™ double sided tape P/N 06377 or equivalent, to prevent rattles.
  13. Place the rear compartment trim back to the original position.
  14. Install the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.