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Power Steering System Flushing: Material

Fig 1: Power Steering System Specification
G01634284Courtesy of FORD MOTOR CO.
WARNING: Do not mix oil types. Any mixture or any unapproved oil can lead to seal deterioration and leaks. A leak can ultimately cause loss of fluid, which can result in a loss of power steering assist.
  1. Remove the ignition coil fuse to disable the vehicle.
  2. Disconnect the power steering return hose. Plug the reservoir.
    Fig 2: Disconnecting Power Steering Return Hose
    G01634285Courtesy of FORD MOTOR CO.
  3. Attach an extension hose between the power steering return hose and an empty container.
  4. Raise the front wheels off the floor.
  5. Fill the reservoir.
    Fig 3: Locating Reservoir Mark
    G01634286Courtesy of FORD MOTOR CO.
  6. CAUTION: Do not crank the engine for more than 15 seconds at a time. Allow the starter to cool for 1 minute before cranking again. Premature starter failure can occur.
    CAUTION: Do not hold the steering wheel against the stops for more than three to five seconds at a time. Damage to the power steering pump can occur.
  7. Turn the steering wheel from stop-to-stop while cranking the engine until the fluid exiting the power steering return hose is clear of all contamination and foreign material.
  8. Lower the vehicle.
  9. Disconnect the extension hose from the power steering return hose. Remove the plug. Attach the power steering return hose to the reservoir.
    Fig 4: Disconnecting Extension Hose
    G01634287Courtesy of FORD MOTOR CO.
  10. CAUTION: Do not overfill the reservoir.
    Fig 5: Locating Reservoir Mark
    G01634288Courtesy of FORD MOTOR CO.
  11. Fill the reservoir.
  12. Install the ignition coil fuse.
  13. CAUTION: Do not hold the steering wheel against the stops for more than three to five seconds at a time. Damage to the power steering pump can occur.
  14. Start the engine and turn the steering wheel from stop-to-stop.
  15. NOTE: If the power steering system is noisy and is accompanied by evidence of aerated fluid, it can be necessary to purge the power steering system.
    Fig 6: Checking Power Steering Fluid Level
    G01634289Courtesy of FORD MOTOR CO.
  16. Check the power steering fluid level.