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 MANUALSCHEVROLET2002AVALANCHE 2500, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMESUN ROOF/T-TOP/CONVERTIBLE TOPPOWER SUN ROOFREPAIR INSTRUCTIONSROOF DRAIN CHANNEL REPLACEMENTINSTALLATION PROCEDURE
2002 Chevrolet Avalanche 2500, RWD
Installation Procedure
2002 Chevrolet Avalanche 2500, RWDSECTION Installation Procedure
- Slide the drain channel into the guide tab (2).
- Push on the drain channel (1) until it locks into place by the retainer (3). Do the same for the other side.
- Ensure both sides are properly seated in the guide.
- Install the sunroof glass panel. Refer to Sunroof Glass Panel Replacement .
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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.