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HOMESERVICE MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1187 (STEERING SYSTEM - GENERAL INFORMATION)GENERAL PROCEDURESPOWER STEERING SYSTEM PURGING
2009 Mercury Milan Premier, 3.0 1, AWD

Power Steering System Purging

2009 Mercury Milan Premier, 3.0 1, AWDSECTION Power Steering System Purging
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools

Illustration Tool Name Tool Number
GF0001258
 Evacuation Cap, Power Steering 211-265 or equivalent
GF0000997
 Vacuum Pump Kit 416-D002 (D95L-7559-A) or equivalent
Material

Item Specification
MERCON® V Automatic Transmission Fluid
XT-5-QM (or XT-5-QMC) (US); CXT-5-LM12 (Canada)		 MERCON® V
CAUTION: If the air is not purged from the power steering system correctly, premature power steering pump failure may result. The condition may occur on pre-delivery vehicles with evidence of aerated fluid or on vehicles that have had steering component repairs.
    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.
  1. Remove the power steering pump reservoir cap. Check the fluid.
  2. Raise the front wheels off the floor. Refer to the appropriate Service Information article for the procedure.
  3. Tightly insert the stopper of the vacuum pump into the reservoir.
  4. Start the engine.
  5. Install the vacuum pump, apply vacuum and maintain the maximum vacuum of 68-85 kPa (20-25 in-Hg).
  6. If equipped with Hydro-Boost®, apply the brake pedal twice.
    7. CAUTION: Do not hold the steering wheel against the stops for an extended amount of time. Damage to the power steering pump may occur.
  7. Cycle the steering wheel fully from stop-to-stop 10 times.
  8. Stop the engine.
  9. Release the vacuum and remove the vacuum pump.
    10. NOTE: Do not overfill the reservoir.
  10. Fill the reservoir.
    • Use approved transmission fluid.
  11. Start the engine.
  12. Install the vacuum pump. Apply and maintain the maximum vacuum of 68-85 kPa (20-25 in-Hg).
    13. CAUTION: Do not hold the steering wheel against the stops for an extended amount of time. Damage to the power steering pump may occur.
  13. Cycle the steering wheel fully from stop-to-stop 10 times.
  14. Stop the engine, release the vacuum and remove the vacuum pump.
    15. NOTE: Do not overfill the reservoir.
  15. Fill the reservoir as needed and install the reservoir cap.
  16. Visually inspect the power steering system for leaks.
    17. NOTE: Do not overfill the reservoir.
  17. Fill the reservoir as needed and visually inspect the power steering system for leaks.
  18. Install the reservoir cap.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.