The power steering fluid is low.

Add an adequate amount of power steering fluid. Refer to Checking and Adding Power Steering Fluid .

The pump belt is loose.

Refer to one of the following procedures:

The flow control valve is sticky.

Replace or clean the control valve.

The pump pressure is insufficient.

Refer to Power Steering System Test .

The gear pressure relief valve is faulty.

Replace the faulty gear pressure relief valve.

The steering linkage is binding.

1. Inspect the steering linkage for worn components.
2. Replace any worn components.