Sierra 3500 4WD V8-6.0L (2008)
4. Remove the 1 hose clips securing the drain hose to the windshield pillar, right or left side, as needed.
5. Remove the drain hose from the vehicle, right or left side, as needed.
Installation Procedure
1. Install the drain hose by passing it threw the front of the dash panel.
2. Route the end of the drain hose through side cowl panel until the paint mark is visible, right or left side, as needed.
3. Install the 1 hose clips securing the drain hose to the side door frame, right or left side, as needed.
4. Connect the front sunroof drain hose to the sunroof module front spigot, right or left side, as needed.
5. Install the instrument panel trim.
6. Install the headliner.
Sunroof Housing Rear Drain Hose Replacement
Sunroof Housing Rear Drain Hose Replacement
Removal Procedure
Important: It is only necessary to lower the headliner. Only do those steps in headliner replacement that will lower the headliner enough
to grain access.
1. Lower the headliner. Refer to Headlining Trim Panel Replacement (Regular Cab) Headlining Trim Panel Replacement (Crew Cab) Headlining
Trim Panel Replacement (Extended Cab).
2. Disconnect the rear sunroof drain hose from the sunroof module rear spigot, right or left side, as needed.
