GM Service Manual Online
For 1990-2009 cars only

Condition

Causes

Steering Wheel Surges or Jerks

    • The hydraulic system is faulty. Perform the pressure test with the J 5176-D or the J 25323-B . Refer to Power Steering System Test .
    • The steering gear valve and pinion is sticking.
    • The steering gear valve and pinion is plugged.
    • The power steering belt is loose.
    • The power steering fluid is contaminated.
    • Air is in the power steering system.