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 MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 844 (MIRROR SYSTEM & WINDOW SYSTEM)REPAIR INSTRUCTIONSWINDOW REPLACEMENT - LIFTGATEREMOVAL PROCEDURE
1999 GMC Forward Control 5.7 R, Automatic
Removal Procedure
1999 GMC Forward Control 5.7 R, AutomaticSECTION Removal Procedure
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the lift gate applique. Refer to Liftgate Applique Replacement in Body Rear End.
- Remove the rear wiper arm. Refer to Wiper Arm Replacement - Rear in Wiper/Washer Systems.
- Remove the lift gate trim panel. Refer to Trim Panel Replacement - Liftgate in Body Rear End.
- Remove the rear wiper module. Refer to Wiper Motor Replacement - Liftgate in Wiper/Washer Systems.
CAUTION:
If a window is cracked but still intact, crisscross the window with masking tape in order to reduce the risk of damage or personal injury.
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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.