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Fuel System Bleeding - Diesel Engine

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
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.
  1. Bleed the fuel system by cycling the ignition 3 times in the following sequence:
    1. Turn the ignition key ON without cranking the engine.
    2. Wait 30 seconds for the fuel conditioning module to run.
    3. Turn the ignition key OFF.
  2. Test the system for normal operation. If the engine will not start there may still be air in the fuel system, continue bleeding the fuel system with the following steps.
  3. NOTE: Fuel injection equipment is manufactured to very precise tolerances and fine clearances. To prevent fuel system damage, it is essential that absolute cleanliness is observed when working with these components.

    If air is still present in the fuel system, disconnect the fuel supply tube quick connect coupling from the secondary fuel filter and position aside. For additional information, refer to QUICK CONNECT COUPLING .

    Fig 1: Locating Fuel Supply Tube Quick Connect Coupling
    G07484327Courtesy of FORD MOTOR CO.
  4. Install one end of a suitable hose onto the secondary fuel filter and the other end into a suitable container.
  5. Cycle the ignition 3 times in the following sequence until no air is present in the fuel system:
    1. Turn the ignition key ON without cranking the engine.
    2. Wait 30 seconds for the fuel conditioning module to run.
    3. Turn the ignition key OFF.
  6. NOTE: Fuel injection equipment is manufactured to very precise tolerances and fine clearances. To prevent fuel system damage, it is essential that absolute cleanliness is observed when working with these components.

    Remove the hose and connect the fuel supply tube quick connect coupling to the secondary fuel filter. For additional information, refer to QUICK CONNECT COUPLING .

    Fig 2: Locating Fuel Supply Tube Quick Connect Coupling
    G07484327Courtesy of FORD MOTOR CO.
  7. NOTE: Carry out a Key ON Engine OFF (KOEO) visual inspection for fuel leaks after completing the Fuel System Bleeding procedure.

    Check the system for normal operation.

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