Chevrolet Silverado / GMC Sierra. Service manual — part 2775

Fig. 12: Hose Clips Securing Drain Hose To Cowl Panel And Side Door Frame
Courtesy of GENERAL MOTORS CORP.

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.

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Sunroof - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Installation Procedure

Fig. 13: Hose Clips Securing Drain Hose To Cowl Panel And Side Door Frame
Courtesy of GENERAL MOTORS CORP.

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

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Sunroof - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

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.

Fig. 14: Front Sunroof Drain Hose From Sunroof Module Front Spigot
Courtesy of GENERAL MOTORS CORP.

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. Refer to Instrument Panel Upper Trim Panel with

Windshield Defroster Nozzle Grille Replacement (without RPO SLT) or Instrument
Panel Upper Trim Panel with Windshield Defroster Nozzle Grille Replacement (with
RPO SLT) .

6. Install the headliner. Refer to Headlining Trim Panel Replacement (Regular Cab) or

Headlining Trim Panel Replacement (Crew Cab) or Headlining Trim Panel

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Sunroof - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Replacement (Extended Cab) .

SUNROOF HOUSING REAR DRAIN HOSE REPLACEMENT

Removal Procedure

1. Lower the headliner. Refer to Headlining Trim Panel Replacement (Regular Cab) or

Headlining Trim Panel Replacement (Crew Cab) or Headlining Trim Panel
Replacement (Extended Cab) .

Fig. 15: Rear Sunroof Drain Hose From The Sunroof Module Rear Spigot
Courtesy of GENERAL MOTORS CORP.

2. Disconnect the rear sunroof drain hose from the sunroof module rear spigot, right or left

side, as needed.

IMPORTANT: It is only necessary to lower the headlinder. Only do those

steps in headlinder replacement that will lower the
headlinder enough to grain access.

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Sunroof - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado