GM Service Manual Online
For 1990-2009 cars only

Problem

Action

High internal leakage

Inspect the power steering system for leaks. Refer to Power Steering Gear and Pump Leaks .

Sticking or damaged power steering gear valve spool

  1. Flush the power steering system. Refer to Power Steering System Flushing
  2. If problem still remains replace the power steering gear. Refer to Steering Gear Replacement .

Insufficient power steering pump pressure

Refer to Power Steering System Test .

Low power steering fluid level

  1. Inspect the power steering system for leaks. Refer to Power Steering Gear and Pump Leaks .
  2. Add power steering fluid to the power steering system.
  3. Refer to Checking and Adding Power Steering Fluid .