GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 Century 🢒 Body and Accessories 🢒 Roof 🢒 Sunroof Housing Rear Drain Hose Replacement

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

    2. Object Number: 640193 Size: SH
  2. Remove the rear sunroof drain hose from the sunroof module spigot.
  3. Remove the rear sunroof drain hose from the rear pillar.

    4. Object Number: 166673 Size: SH
  4. Remove the rear sunroof drain hose from the drain tube at the base of the rear pillar.
  5. Remove the rear sunroof drain hose from the vehicle.

Installation Procedure

    Object Number: 166673 Size: SH
  1. Install the rear sunroof drain hose to the vehicle.
  2. Install the rear sunroof drain hose to the drain tube at the base of the rear pillar.
  3. Install the sunroof drain hose to the rear pillar.

    4. Object Number: 640193 Size: SH
  4. Press the rear sunroof drain hose onto the sunroof rear drain spigot
  5. Ensure that the rear drain hoses are properly routed in the metal roof slot and are taped in place.
  6. Install the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.