GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Lower the headliner in order to access the drain hose connections. Refer to Headlining Trim Panel Replacement in Interior Trim.
  2. Remove the clamp (3) and the drain hose (2) from the drain spout.
  3. Remove the interior moldings in order to access the drain hose retaining clips. Refer to Windshield Pillar Garnish Molding Replacement or Rear Quarter Trim Panel Replacement in Interior Trim.
  4. Remove the tape from the drain hose.

  5. Object Number: 500955  Size: SH
  6. Remove the front drain hose (1) from the retaining clips.

  7. Object Number: 500958  Size: SH
  8. Remove the rear upper drain hose (1) from the retaining clips.
  9. Remove the clamp (3) and the drain hose (2) from the drain spout.
  10. Remove the rear compartment trim panels. Refer to Rear Compartment Side Trim Replacement - Left Side or Rear Compartment Side Trim Replacement - Right Side in Body Rear End.

  11. Object Number: 258860  Size: SH
  12. Remove the rear lower drain hose from the retaining clips.

Installation Procedure


    Object Number: 258860  Size: SH
  1. Clip the rear lower drain hose into position.
  2. Install the rear compartment trim. Refer to Rear Compartment Side Trim Replacement - Left Side or Rear Compartment Side Trim Replacement - Right Side in Body Rear End.

  3. Object Number: 500958  Size: SH
  4. Clip the rear upper drain hose (1) into position.
  5. Attach the hose (2) to the drain spout and secure the hose clamp (3).

  6. Object Number: 500955  Size: SH
  7. Clip the front drain hose (1) into position.
  8. Apply adhesive tape in order to secure the hose to the pillar.
  9. Install the interior moldings. Refer to Windshield Pillar Garnish Molding Replacement or Rear Quarter Trim Panel Replacement in Interior Trim.
  10. Important: When installing the drain hose clamps (3), position the clamps in order to maintain clearance between the clamps and the headliner.

  11. Install the drain hose (2) to the drain spout and secure the clamps (3).
  12. Notice: Use care when removing and installing the headliner. If reusing the headliner lay the headliner down flat on a clean surface. Excessive bending will damage the headliner.

  13. Install the headliner to the roof. Refer to Headlining Trim Panel Replacement in Interior Trim.