GM Service Manual Online
For 1990-2009 cars only

Condition

Causes

Hard steering or a lack of assist exists, especially during parking/turning/steering wheel.

    • A Magnasteer® system malfunction. Refer to Electrical Diagnosis.
    • A damaged intermediate shaft coupling
    • A worn intermediate shaft coupling
    • Tight steering column bearings
    • A sticking flow control valve
    • Insufficient pump pressure
    • Air in the power steering system
    • A low fluid level
    • Excessive internal pump leakage
    • Excessive internal rack and pinion leakage
    • Inspect for diagnostic trouble codes in the ride control system. Refer to Electronically Controlled Suspension.