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Power Steering System Purging

WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
SPECIAL TOOL(S)

G04583244
 Vacuum Pump Kit
416-D002 (D95L-7559-A) or equivalent
G04583245
 Evacuation Cap, Power Steering
211-265 or equivalent
MATERIAL SPECIFICATION

Item Specification
MERCON® Multi-Purpose (ATF) Transmission Fluid XT-2-QDX MERCON®
    WARNING: If equipped with fire suppression system, depower the system. For important safety warnings and procedures, refer to FIRE SUPPRESSION SYSTEM .
    CAUTION: If the air is not purged from the power steering system correctly, premature power steering pump failure can result. The condition can occur on pre-delivery vehicles with evidence of aerated fluid or on vehicles that have had steering component repairs.
  1. If equipped with fire suppression system, depower the system.
    2. NOTE: A whine heard from the power steering pump can be caused by air in the system. The power steering purge procedure must be carried out prior to any component repair for which power steering noise complaints are accompanied by evidence of aerated fluid.
  2. Remove the power steering pump reservoir cap. Check the fluid.
  3. Raise the front wheels off the floor. Refer to JACKING & LIFTING .
  4. Tightly insert the stopper of the vacuum pump into the reservoir.
  5. Start the engine.
  6. Install the vacuum pump, apply vacuum, and maintain the maximum vacuum of 68-85 kPa (20-25 in-Hg).
  7. If equipped with Hydro-Boost®, apply the brake pedal twice.
    8. CAUTION: Do not hold the steering wheel against the stops for more than 3 to 5 seconds at a time. Damage to the power steering pump can occur.
  8. Cycle the steering wheel fully from stop-to-stop 10 times.
  9. Stop the engine.
  10. Release the vacuum and remove the vacuum pump.
    11. CAUTION: Do not overfill the reservoir.
  11. Fill the reservoir.
    • Use approved transmission fluid.
  12. Start the engine.
  13. Install the vacuum pump. Apply and maintain the maximum vacuum of 68-85 kPa (20-25 in-Hg).
    14. CAUTION: Do not hold the steering wheel against the stops for more than 3 to 5 seconds at a time. Damage to the power steering pump can occur.
  14. Cycle the steering wheel fully from stop-to-stop 10 times.
  15. Stop the engine, release the vacuum and remove the vacuum pump.
    16. CAUTION: Do not overfill the reservoir.
  16. Fill the reservoir as needed and install the reservoir cap.
  17. Visually inspect the power steering system for leaks.
    18. CAUTION: Do not overfill the reservoir.
  18. Fill the reservoir as needed and visually inspect the power steering system for leaks.
  19. Install the reservoir cap.
    20. WARNING: If equipped with fire suppression system, repower the system. For important safety warnings and procedures, refer to FIRE SUPPRESSION SYSTEM .
  20. If equipped with fire suppression system, repower the system.
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