GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1256448  Size: SH
  1. Siphon the power steering fluid from the fluid reservoir.
  2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Notice: Refer to Power Steering Hose Disconnected Notice in the Preface section.

  4. Disconnect the power steering gear hydraulic cylinder pipes from the power steering gear at the valve end. Replace the O-ring seals, as needed.
  5. Disconnect the power steering gear hydraulic cylinder pipes from the power steering gear at the cylinder end.
  6. Remove the steering gear hydraulic cylinder pipes from the vehicle.

Installation Procedure


    Object Number: 1256450  Size: SH
  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.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Connect the power steering gear hydraulic cylinder pipes to the power steering gear at the valve end.
  5. Tighten
    Tighten the hydraulic cylinder line fittings at the valve end to 18 N·m (13 lb ft).


    Object Number: 1256451  Size: SH
  6. Connect the power steering gear hydraulic cylinder pipes to the power steering gear at the cylinder end.
  7. Tighten
    Tighten the hydraulic cylinder line fittings at the cylinder end to 28 N·m (21 lb ft).

  8. Lower the vehicle.
  9. Notice: Refer to Power Steering Required Fluid Notice in the Preface section.

  10. Fill the fluid reservoir with power steering fluid.
  11. Inspect for leaks. If there are leaks, correct the cause of the leaks and bleed the system. Refer to Power Steering Fluid Leaks .