GM Service Manual Online
For 1990-2009 cars only

Condition

Causes

The steering gear valve spool is sticking or damaged.

Replace the steering gear.

Refer to Steering Gear Replacement .

Insufficient pump pressure.

Replace the pump.

Refer to Steering Gear Replacement .

The fluid level is low.

Check the fluid level.

Refer to Checking and Adding Power Steering Fluid .