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Home >> Lincoln >> 2009 >> MKZ AWD >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System - General Information >> General Procedures >> Fuel Tank Draining

Fuel Tank Draining

Special Tools

Illustration Tool Name Tool Number
GF0004199Courtesy of FORD MOTOR CO.
Fuel Storage Tanker 164-R3202 or equivalent
GF0004227Courtesy of FORD MOTOR CO.
Fuel Tank Lock Ring Wrench 310-123
GF0029426Courtesy of FORD MOTOR CO.
Fuel Draining Hose 310-102
WARNING: Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.
WARNING: Do not carry personal electronic devices such as cell phones, pagers or audio equipment of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.
WARNING: When handling fuel, always observe fuel handling precautions and be prepared in the event of fuel spillage. Spilled fuel may be ignited by hot vehicle components or other ignition sources. Failure to follow these instructions may result in serious personal injury.
WARNING: Remove the fuel filler cap slowly. The fuel system may be under pressure. If the fuel filler cap is venting vapor or if you hear a hissing sound, wait until it stops before completely removing the fuel filler cap. Otherwise, fuel may spray out. Failure to follow these instructions may result in serious personal injury.
WARNING: Always disconnect the battery ground cable at the battery when working on an evaporative emission (EVAP) system or fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.

All vehicles 

  1. Release the fuel system pressure. For additional information, refer to FUEL SYSTEM PRESSURE RELEASE .
  2. Disconnect the battery ground cable. For additional information, refer to BATTERY, MOUNTING AND CABLES .
  3. Carefully turn the fuel tank filler cap counterclockwise approximately one-fourth turn until the thread disengages and position aside.
  4. CAUTION: When removing the Fuel Draining Hose, the fitting on the end of the hose can become detained by the safety valve. Carefully remove the hose using a gentle agitating motion to avoid detaching the hose from the fitting.
    NOTE: The special tool must be inserted into the fuel tank filler pipe until the fitting on the end of the hose enters into the fuel tank spout, opening the one-way flapper valve.
  5. Insert the special tool into the fuel tank filler pipe.
  6. Fig 1: Inserting Special Tool (310-102) Into Fuel Tank Filler Pipe
    GF0029428Courtesy of FORD MOTOR CO.
    NOTE: This step will remove approximately 1/8 tank of the fuel from a completely full fuel tank and the majority of any residual fuel in the fuel tank filler pipe.
  7. Attach the Fuel Storage Tanker to the special tool and remove as much fuel as possible from the fuel tank and fuel tank filler pipe.
  8. Remove the rear seat lower cushion. For additional information, refer to SEATING article.
  9. Front Wheel Drive (FWD) vehicles 

  10. Remove the 4 screws and the fuel pump (FP) module access cover.
  11. Fig 2: Identifying Fuel Pump Module Access Cover & Screws
    GF0030148Courtesy of FORD MOTOR CO.

    All-Wheel Drive (AWD) vehicles 

  12. Remove the 3 screws and the FP module access cover.
  13. Fig 3: Identifying Fuel Pump Module Access Cover & Screws
    GF0030149Courtesy of FORD MOTOR CO.

    All vehicles 

    NOTE: Clean the FP module connections, couplings, flange surfaces and the immediate surrounding area of any dirt or foreign material.
  14. Disconnect the FP module electrical connector.
  15. Fig 4: Identifying Fuel Pump Module Electrical Connector
    GF0030150Courtesy of FORD MOTOR CO.
    NOTE: Place absorbent toweling in the immediate surrounding area in case of fuel spillage.
  16. Disconnect the fuel tube-to-FP module quick connect coupling.
  17. Fig 5: Identifying Fuel Supply Tube-To-Fuel Pump Module Quick Connect Coupling
    GF0030151Courtesy of FORD MOTOR CO.
    NOTE: Make sure to install a new FP module O-ring seal and lock ring.
  18. Install the special tool, remove and discard the FP module lock ring.
  19. Fig 6: Identifying Special Tool (310-123)
    GF0030152Courtesy of FORD MOTOR CO.
    CAUTION: The fuel pump (FP) module must be handled carefully to avoid damage to the float arm.
  20. Position the FP module aside and insert the tube from the fuel storage tanker into the FP module aperture and drain as much fuel from the fuel tank as possible.
  21. Fig 7: Identifying Tube From Fuel Storage Tanker
    GF0030153Courtesy of FORD MOTOR CO.

    AWD vehicles 

  22. Remove the 3 screws and the fuel level sensor access cover.
  23. Fig 8: Identifying Fuel Level Sensor Access Cover & Screws
    GF0030154Courtesy of FORD MOTOR CO.
    NOTE: Clean the fuel level sensor connection, flange surface and the immediate surrounding area of any dirt or foreign material.
  24. Disconnect the fuel level sensor electrical connector.
  25. Fig 9: Identifying Fuel Level Sensor Electrical Connector
    GF0030155Courtesy of FORD MOTOR CO.
    NOTE: Place absorbent toweling in the immediate surrounding area in case of fuel spillage.
  26. Release the lock tab, and using a suitable tool, rotate the fuel level sensor counterclockwise approximately 1/4 turn, lift and position aside.
  27. Fig 10: Rotating Fuel Level Sensor Counterclockwise Approximately 1/4 Turn & Lift Upward
    GF0030156Courtesy of FORD MOTOR CO.
  28. Insert the tube from the fuel storage tanker into the fuel level sensor aperture and drain the remainder of the fuel from the fuel tank.
  29. Fig 11: Identifying Tube From Fuel Storage Tanker
    GF0030157Courtesy of FORD MOTOR CO.