GM Service Manual Online
For 1990-2009 cars only

Important: Review the system description and operation in order to familiarize yourself with the system functions. Refer to Power Steering System Description and Operation .

Visual/Physical Inspection

    • Inspect for aftermarket devices which could affect the operation of the power steering system.
    • Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
    • Inspect the power steering reservoir for the proper power steering fluid level and condition.

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

    •  Power Steering System Test
    •  Power Steering Fluid Leaks
    •  Rattle in Rack and Pinion Steering Gear
    •  Objectionable Hiss in the Power Steering System
    •  Rattle or Chuckle Noise in Steering Gear
    •  Groan Noise in Steering Pump
    •  Steering Vibrates During Low Speed or Static Steering
    •  Power Rack and Pinion Steering Gear Bench Testing
    •  Hard Steering
    •  Wander or Poor Steering Stability
    •  Foaming, Milky-Appearing Power Steering Fluid
    •  Increase in Effort While Turning Steering Wheel
    •  Poor Return of Steering Wheel
    •  Steering Wheel Surges/Jerks While Turning
    •  Steering Wheel Kickback
    •  Steering Effort Hard in One or Both Directions
    •  Too Much Play in Steering