Verify that the power steering fluid level is at the full (F) mark. Add Motorcraft MERCON Multipurpose ATF XT-2-QDX or MERCON equivalent.
Air Bleeding
Verify that there is no air in the power steering system. Run the engine until it reaches normal operating temperature. Turn the steering wheel to the left and right several times without hitting the stops. If any air bubbles are present, refer to Purging.
External Leak Check-Typical Power Rack-and-Pinion Steering Gear
External Leak Check - Typical Power Rack-and-Pinion Steering Gear
With the engine running, turn the steering wheel from stop to stop several times. Do not hold steering wheel at stops. Check for leaks. Repair as necessary if leaks are observed.
Turning Effort Check
Visually inspect for obvious signs of mechanical and electrical damage.
If an obvious cause for an observed or reported malfunction is found, correct the cause (if possible) before proceeding to the next step.