Steering Gear Cylinder Pipe Assembly and Seals Replacement - Off Vehicle Quiet Valve

1. Loosen both of the cylinder line fittings (1) on the cylinder end of the gear assembly (2).
2. Loosen both of the fittings on the cylinder line assemblies (3) at the valve end of the gear assembly (2).



3. Remove both of the cylinder line assemblies (1) from the rack and pinion gear assembly (2).



4. Remove the O-ring seals (1) from the valve end of line.
5. Discard the O-ring seals (1).

1. Inspect the cylinder lines (1) for the following conditions:

•

Cracks

•

Dents

•	Damage to the threads

2. Install the new O-ring seals (1) to the valve end of the cylinder lines.

Important: Carefully align the threads on all of the fittings.

3. Finger tighten the fittings in order to avoid cross-threading and stripping the fittings.
4. Replace the parts as needed.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

5. Install the cylinder line assemblies (1) to the gear assembly (2).

Tighten
Tighten the valve end fittings to 16.9 N·m (12.6 lb ft).

Tighten
Tighten the cylinder end fittings to 27 N·m (20 lb ft).

Important: Flush and bleed the power steering system (hoses, reservoir, and cooler lines) with power steering fluid GM P/N 1050017 (or equivalent meeting GM Specification Number 9985010).

6. Flush and bleed the power steering system. Refer to Power Steering System Bleeding .

Steering Gear Cylinder Pipe Assembly and Seals Replacement - Off Vehicle Magnasteer

1. Loosen both of the cylinder line fittings (1) on the cylinder end of the gear assembly (2).
2. Loosen both of the fittings on the cylinder line assemblies (3) at the valve end of the gear assembly (2).



3. Remove both of the cylinder line assemblies (1) from the rack and pinion gear assembly (2).



4. Remove the O-ring seals (1) from the valve end of line.
5. Discard the O-ring seals (1).

1. Inspect the cylinder lines (1) for the following conditions:

•

Cracks

•

Dents

•	Damage to the threads

2. Replace the parts as needed.



3. Install the new O-ring seals (1) to the valve end of the cylinder lines.

Important: Carefully align the threads on all of the fittings.

4. Finger tighten the fittings in order to avoid cross-threading and stripping the fittings.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

5. Install the cylinder line assemblies (1) to the gear assembly (2).

Tighten
Tighten the valve end fittings to 16.9 N·m (12.6 lb ft).

Tighten
Tighten the cylinder end fittings to 27 N·m (20 lb ft).

Important: Flush and bleed the power steering system (hoses, reservoir, and cooler lines) with power steering fluid GM P/N 1050017 (or equivalent meeting GM Specification Number 9985010).

6. Flush and bleed the power steering system. Refer to Power Steering System Bleeding .