GM Service Manual Online
For 1990-2009 cars only

Problem

Action

Low power steering fluid.

  1. Add power steering fluid.
  2. Check the system for leaks.

The pump belt is slipping.

Refer to one of the following procedures:

    •  Drive Belt Replacement in Engine Mechanical (5.0L, 5.7L)
    •  Drive Belt Replacement in Engine Mechanical (6.5L)
    •  Drive Belt Replacement in Engine Mechanical (7.4L).

Sticky flow control valve.

Replace or clean the control valve. Refer to Variable Effort Steering System Check in Variable Effort Steering.

Insufficient pump pressure.

Refer to Power Steering System Test .

Faulty gear pressure relief valve.

Replace the faulty gear pressure relief valve.