Steering Gear Cylinder Pipe Assemblies/O-Ring Seals Replacement - On Vehicle

Steering Gear Cylinder Pipe Assemblies/O-Ring Seals Replacement - On Vehicle

Removal Procedure





1. Siphon the power steering fluid from the fluid reservoir.

Caution:
Refer to Vehicle Lifting Caution Vehicle Lifting Caution in Cautions and Notices.

2. Raise and suitably support the vehicle.

Notice:
Do not start the vehicle with any power steering gear inlet or outlet hoses disconnected. When disconnected, plug or cap all openings of components. Failure to do so could result in contamination or loss of power steering fluid and damage to the system.

3. Disconnect the power steering gear at the valve end. Replace the O-ring seals as needed.





4. Disconnect the power steering gear hydraulic cylinder pipes from the power steering gear at the cylinder end.

5. Remove the steering gear hydraulic cylinder pipes from the vehicle.

Installation Procedure





1. Lubricate any new O-ring seals with power steering fluid.

2. Place the O-ring seals into the housing and install the steering gear hydraulic cylinder pipes.

Notice:
Refer to Fastener Notice Fastener Notice in Cautions and Notices.

3. Connect the power steering gear hydraulic cylinder pipes to the power steering gear at the valve end.

Tighten the hydraulic cylinder line fittings at the valve end to 18 Nm (13 lb ft).





4. Connect the power steering gear hydraulic cylinder pipes to the power steering gear at the cylinder end.

Tighten the hydraulic cylinder line fittings at the cylinder end to 28 Nm (21 lb ft).

5. Lower the vehicle.

Notice:
When adding fluid or making a complete fluid change, always use a power steering fluid meeting GM Spec. No. 9985010 or equivalent. Fluid for cold climates is also available through GM Dealerships; refer to Specifications for further information. Failure to use the proper power steering fluid can cause power steering hose and seal damage, fluid leaks and pump failure.

6. Fill the fluid reservoir with power steering fluid.

7. Inspect for leaks. If there are leaks, correct the cause of the leaks and bleed the system. Refer to Power Steering System Bleeding Power Steering System Bleeding.