Check for air contamination in the power steering system.

Bleed the power steering system.

Check the wheel bearings for wear or damage.

Replace the wheel bearins.

Check the steering gear mounting for improper installation.

Tighten the steering gear mounting bracket nuts and bolts.

Check the intermediate shaft joints for improper installation.

Adjust the intermediate shaft between the steering gear and the steering column. Replace the intermediate shaft.

Check the outer tie rods and the ball joints for looseness.

Tighten the tie rods and the ball joints. Replace the tie rods and the ball joints.