Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 985 (ROOF)REPAIR INSTRUCTIONSSUNROOF REPLACEMENTINSTALLATION PROCEDURE

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M

Installation Procedure

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Installation Procedure

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2001 GMC Yukon XL, 2001 GMC Yukon, 2001 GMC Sierra, 2001 GMC Cab & Chassis Sierra, and 2001 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Sunroof Module Assembly

Courtesy of GENERAL MOTORS COMPANY

Install the module to the vehicle.

Fig 2: Sunroof Module Tightening Sequence

Courtesy of GENERAL MOTORS COMPANY

Loosely install the 9 bolts retaining the module to the roof.
Use a drill bit to align the 2 holes (6 and 7).
Refer to FASTENER NOTICE in Cautions and Notices.
Tighten the 9 bolts.

Tighten

Tighten the 9 bolts in the sequence shown to 9 N.m (80 lb in).
Connect the electrical connectors.
Install the drain hoses. Refer to Sunroof Housing Front Drain Hose Replacement , and Sunroof Housing Rear Drain Hose Replacement .
Install the headliner. Refer to Headlining Trim Panel Replacement (Pickup) , Headlining Trim Panel Replacement (Utility) in Interior Trim.
Install the finishing lace. Refer to Sunroof Opening Trim Finish Lace Replacement .
Synchronize the sunroof motor if necessary. Refer to Sunroof Actuator Motor Synchronization .

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.