A worn piston ring or a scored housing bore causes pressure loss in the cylinder.

1. Disassemble the steering gear. Refer to Steering Gear Disassemble.
2. Inspect the ring.
3. Inspect the housing bore.
4. Replace the affected parts. Refer to Steering Gear Replacement .

A worn seal leaks at the valve rings and the valve body.

1. Disassemble the steering gear. Refer to Steering Gear Replacement .
2. Replace the seals.

The valve body leaks or the fitting spool is loose.

Replace the valve. Refer to Steering Gear Valve Replacement - Off Vehicle .