GM Service Manual Online
For 1990-2009 cars only

Condition

Causes

    • Hard steering
    • Lack of assist
    • A Magnasteerâ„¢ system malfunction.
    • 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
    • Low fluid level
    • Excessive internal pump leakage
    • Excessive internal rack and pinion leakage