The power steering fluid level is low.

Fill the power steering system.

Refer to Checking and Adding Power Steering Fluid .

The steering gear valve is sticking.

1. Drain the power steering system. Refer to Draining the Power Steering System .
2. Fill the power steering system. Refer to Refilling the Power Steering System .
3. Bleed the power steering system. Refer to Power Steering System Bleeding .

Repair or replace the power steering gear if the symptoms persist. Refer to Steering Gear Replacement .

The power steering pump pressure is low.

Repair or replace the power steering pump.

Refer to Power Steering Pump Replacement .