GM Service Manual Online
For 1990-2009 cars only

    Important: 

       • Use approved new power steering fluid from a sealed container. For fluid specifications refer to Fluid and Lubricant Recommendations.
       • Hoses touching the frame, body or engine may cause power steering system noise. Verify that the hoses do not touch any other part of the vehicle.
       • Loose connections may not leak, but may allow air into the steering system. Verify that all hose connections are tight. Refer to Fastener Tightening Specifications.

    Notice: When adding fluid or making a complete fluid change, always use the proper power steering fluid. Failure to use the proper fluid will cause hose and seal damage and fluid leaks.

    Important: Power steering fluid level must be maintained throughout bleed procedure.

  1. Fill power steering fluid reservoir with fluid to the COLD MAX level mark on the reservoir.
  2. Raise the vehicle until the front wheels are off the ground. Refer to Lifting and Jacking the Vehicle.
  3. With the engine OFF, turn the steering wheel from stop to stop 12 times.
  4. Verify power steering fluid level per operating specification. Refer to Checking and Adding Power Steering Fluid.
  5. Start the engine and allow to run at idle for three seconds, turn the engine OFF.
  6. Repeat steps 4 and 5 until the power steering level remains constant.
  7. Start the engine and allow to run at idle.
  8. Rotate steering wheel from left to right 8 times. Check for sign of cavitation or fluid aeration (pump noise/whining).
  9. Turn the engine OFF. Verify the fluid level. Refer to Checking and Adding Power Steering Fluid.