There is excessive back pressure in the hoses.

1. Inspect the hoses for restrictions. Refer to Power Steering System Test .
2. Repair the hoses as needed. Refer to Steering Gear Replacement .

There is excessive back pressure in the steering gear.

1. Inspect the steering gear for restrictions. Refer to Power Steering System Test .
2. Repair the steering gear as necessary. Refer to Steering Gear Replacement .

The pressure plate is scored.

1. Inspect the pressure plate for scores.
2. Replace the pressure plate as needed. Refer to Power Steering Pump Replacement .

The thrust plate is scored.

1. Inspect the thrust plate for scores.
2. Replace the thrust plate as needed. Refer to Power Steering Pump Replacement .

The rotor is scored.

1. Inspect the rotor for scores.
2. Replace the rotor as needed. Refer to Power Steering Pump Replacement .

The pump ring is worn.

1. Inspect the pump ring.
2. Replace the pump ring as needed. Refer to Power Steering Pump Replacement .