GM Service Manual Online
For 1990-2009 cars only

Problem

Action

High internal leakage

Refer to Power Steering Gear and Pump Leaks .

Sticking/damaged steering gear valve spool

Refer to Steering Gear Replacement .

Insufficient pump pressure

Refer to Power Steering System Test .

Low power steering fluid level

Add power steering fluid to the power steering system.

Refer to Checking and Adding Power Steering Fluid .