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 564 (WIPER SYSTEM & WASHER SYSTEM)REPAIR INSTRUCTIONSWIPER ARM REPLACEMENT - REARINSTALLATION PROCEDURE
1999 GMC Forward Control 5.7 R, Automatic
Installation Procedure
1999 GMC Forward Control 5.7 R, AutomaticSECTION Installation Procedure
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- Install the rear wiper blade onto the rear wiper arm. Refer to Wiper Arm Blade Replacement - Rear .
- Align the rear wiper blade with the mark on the rear window.
- Install the rear wiper arm onto the rear wiper motor spindle.NOTE: Refer to Fastener Notice in Cautions and Notices.
- Install the rear wiper arm nut.
Tighten: Tighten the nut to 25 N.m (18 lb ft).
- Install the cap to the rear wiper arm.
- Remove the mark from the rear window.
RENDER: 1.0x
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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.