Sunroof Housing Rear Drain Hose Replacement. Buick Park Avenue 2003

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2003 🢒 Park Avenue 🢒 Body and Accessories 🢒 Roof 🢒 Sunroof Housing Rear Drain Hose Replacement

Remove the headliner in order to access the drain hose connections. Refer to Headlining Trim Panel Replacement in Interior Trim.

Remove the rear drain hoses from the retaining clips (1).
Pull the upper portion of the rear drain hoses out through the access holes in the rear sail panels.

Remove the rear compartment trim panel. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.
Remove the lower portion of the rear drain hose from the electrical pass-thru grommet.
Pull the lower portion of the rear drain hose up through the access hole in the rear shelf extension panel.
Remove the drain hose from the vehicle.

Install the upper end of the rear drain hoses onto the drain tubes of the sunroof module.

Important: When installing the drain hose clamps, position the clamps in order to maintain clearance between the clamps and the headliner.

Use new tie wraps to clamp the hoses in place.
Route the rear drain hoses through the access holes in the sail panel.
Secure the rear drain hoses to the body with clip (1).
Install the grommet over the end of the rear drain hoses.
Pull the rear drain hoses down through the hole in the rear shelf extension.
Engage the grommet in the rear shelf extension.
Install the rear compartment trim. Refer to Rear Compartment Trim Panel Replacement in Body Rear End.

Install the rear drain hoses to the body electrical pass-thru grommet.
Secure the drain hose to the sail panel attachment clips.
Connect the drain hose to the sunroof module.
Install the headliner to the roof panel, with the aid of an assistant. Refer to Headlining Trim Panel Replacement in Interior Trim.