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 620 (POWER STEERING SYSTEM)
1999 GMC Forward Control 5.7 R, Automatic
Section 620 (Power Steering System)
1999 GMC Forward Control 5.7 R, AutomaticSECTION Section 620 (Power Steering System)
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Component Locator
- Diagnostic Information and Procedures
- Repair Instructions
- Bleeding the Power Steering System
- Excessive Vacuum Drop Diagnosis
- Checking and Adding Power Steering Fluid
- Flushing the Power Steering System
- Remote Power Steering Fluid Reservoir Replacement
- Remote PS Fluid Reservoir Bracket Replacement
- Power Steering Pulley Replacement
- Power Steering Pump Replacement
- Tie Rod Replacement - Inner - On Vehicle
- Tie Rod End Replacement - Outer
- Rack and Pinion Boot Replacement - On Vehicle
- Power Steering Reservoir Outlet Pipe/Hose Replacement
- Power Steering Pressure Hose Replacement
- Power Steering Return Hose Replacement
- Power Steering Gear Replacement
- Rack and Pinion Gear Rack Bearing Preload Adjustment - Off Vehicle (Magnasteer)
- Rack and Pinion Boot Replacement - Off Vehicle
- Tie Rod Replacement - Inner (Magnasteer)
- Steering Gear Cylinder Pipe Assemblies/O-Ring Seals Replacement - Off Vehicle (Magnasteer)
- Description and Operation
- Special Tools and Equipment
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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.