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Home >> Mercury >> 2005 >> Montego Base, FWD >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System-General Information >> General Procedures >> Fuel Tank Draining >> Draining

Fuel Tank Draining: Draining

WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions can result in 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 can result in personal injury.
WARNING: This procedure involves fuel handling. Be prepared for fuel spillage at all times and always observe fuel handling precautions. Failure to follow these instructions may result in personal injury.

    All vehicles 

  1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING .
  2. Release the fuel system pressure. For additional information, refer to General Specifications  .
  3. Disconnect the battery ground cable. For additional information, refer to BATTERY, MOUNTING AND CABLES .
  4. Release the fuel tank filler cap and position aside.
  5. Insert a suitable fuel drain tube into the fuel tank filler pipe until it reaches the fuel tank inlet spout.
    Fig 1: Inserting Suitable Fuel Drain Hose Into Fuel Tank Filler Pipe
    G03986097Courtesy of FORD MOTOR CO.
    6. NOTE: When the fuel tank is completely full, this step will remove approximately 1/8th of the fuel from the fuel tank.
  6. Attach the fuel storage tanker to the fuel drain tube and remove any residual fuel remaining in the fuel tank filler pipe.
    7. CAUTION: The fuel pump module, fuel level sensor and the fuel tank inlet spout are below the fuel level when the fuel tank is completely full. Make sure to drain any residual fuel from the fuel tank filler pipe prior to removing the fuel tank filler pipe clamp and hose.
  7. Release the fuel tank filler pipe hose-to-fuel tank inlet spout clamp.
    • To install, tighten to 3 Nm (27 lb-in).
      Fig 2: Removing Fuel Tank Filler Pipe Hose-To-Fuel Tank Inlet Spout Clamp Screw
      G03992080Courtesy of FORD MOTOR CO.
    8. NOTE: The fuel tank filler pipe may have some residual fuel remaining in it after draining. Upon disconecting the fuel tank filler pipe hose, carefully drain the residual fuel into a suitable container.
  8. Remove the fuel tank filler pipe hose from the fuel tank inlet spout.
  9. Insert a suitable fuel drain tube into the fuel tank inlet spout.
    Fig 3: Inserting Suitable Fuel Drain Tube Into Fuel Tank Inlet Spout
    G03992081Courtesy of FORD MOTOR CO.
    10. NOTE: When draining a completely full fuel tank, this step will drain most of the fuel from the RH side of the fuel tank, and partially drain the LH side of the fuel tank, due to the siphoning effect from the fuel crossover tube.
  10. Attach the fuel storage tanker to the fuel drain tube and drain the fuel from the RH side of the fuel tank.

    11. Five Hundred, Montego 

  11. Remove the rear lower seat cushion.
    • Release the latches and pull upward on the rear lower seat cushion and remove.

    12. Freestyle 

  12. Position the second row seat forward.
  13. Remove the bolt and the LH third row rear seat load floor support.
    • To install, tighten to 17 Nm (13 lb-ft).
  14. Remove the LH second row seat belt anchor bolt.
    • To install, tighten to 30 Nm (22 lb-ft).
  15. Position aside the carpet and any insulation covering the fuel level sensor access cover.

    16. All vehicles 

  16. Remove the fuel level sensor access cover.
  17. Disconnect the fuel level sensor electrical connector.
    18. NOTE: Place absorbant pads in the general work area in case of fuel spillage.
  18. Clean the surrounding area of the fuel level sensor mounting flange.
  19. Install the special tool and remove the fuel level sensor lock ring.
    Fig 4: Removing Fuel Level Sensor Lock Ring
    G03992082Courtesy of FORD MOTOR CO.
  20. Carefully position the fuel level sensor aside.
  21. Install a suitable fuel drain tube into the fuel level sensor access hole in the fuel tank.
    Fig 5: Installing Suitable Fuel Drain Tube Into Fuel Level Sensor Access Hole In Fuel Tank
    G03992083Courtesy of FORD MOTOR CO.
  22. Completely drain the remaining fuel from the LH side of the fuel tank.
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