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 703 (BUMPER SYSTEM)REPAIR INSTRUCTIONSIMPACT BAR REPLACEMENT - REAR BUMPERINSTALLATION 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 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
- Align the rear bumper impact bar to the vehicle.NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
- Install the bolts to the rear bumper impact bar.
Tighten
Tighten the rear bumper impact bar bolts to 25 N.m (18 lb ft).
- Install the rear bumper energy absorber. Refer to ENERGY ABSORBER REPLACEMENT - REAR .
- Install the rear bumper fascia. Refer to FASCIA REPLACEMENT - REAR BUMPER .
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.