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Home >> Ford >> 2021 >> Edge ST-Line, FWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Charging And Controls - 2.0L ECOBOOST (184KW/250PS) - Mi4 >> Removal And Installation >> Fuel Rail >> Installation

Fuel Rail: Installation

  1. NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

    1. Install the Teflon® Seal Guide onto the fuel injector tip. Use Special Service Tool: 310-207 Installer, Fuel Injector Seal Assembly.
    2. NOTE: Once the Teflon® seal is installed on the Teflon® Seal Guide, it should immediately be installed onto the fuel injector to avoid excessive expansion of the Teflon® seal.
      NOTE: Make sure that new lower fuel injector Teflon® seals are installed.

      Install the new Teflon® seals onto the Teflon® Seal Guide, using the Pusher Tool, slide the Teflon® seals along the Teflon® Seal Guide.

    3. Using the Pusher Tool, slide the Teflon® seals off of the Teflon® Seal Guide and into the groove on the fuel injectors. Use Special Service Tool: 310-207 Installer, Fuel Injector Seal Assembly.
    4. Remove the special tools.

    GFD594877Courtesy of FORD MOTOR COMPANY
  2. NOTE: Make sure the Teflon® seal is fully seated in the groove on the fuel injector before sizing the Teflon® seal.

    1. Massage and warm the Teflon® seal with your fingers before the Teflon® seal sizer tool is installed. This will aid in installing the Teflon® seal sizer tool.
    2. NOTE: The beveled opening of the Teflon® seal sizer tool goes away from the seal.

      Position the Teflon® seal sizer tool with the larger opening towards the Teflon® seal. Push while turning the Teflon® seal sizer tool 180 degrees. Use Special Service Tool: 303-1567 Sizer, Teflon Seal.

    3. Once the Teflon® seal sizer tool is installed, check and make sure the Teflon® seal is in the sizing portion of the Teflon® seal sizer tool.
    4. After one minute, turn the Teflon® seal sizer tool back 180 degrees and remove.

    GFD594878Courtesy of FORD MOTOR COMPANY
  3. NOTE: Make sure that new fuel injector support rings and new fuel injector O-ring seals are installed.

    1. NOTE: The new the fuel injector support rings must be installed in the correct orientation with the wide surface area facing up against the fuel injector O-ring seals. Improperly installed support rings may cause the fuel system to leak.

      Install the new the fuel injector support rings.

    2. NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

      Install the new fuel injector O-rings.

    3. Install the new the fuel injector clips.

    GFD594879Courtesy of FORD MOTOR COMPANY
  4. NOTE: The anti-rotation finger of the fuel injector clip must slip into the groove of the fuel rail cup.

    Install the fuel injectors to the fuel rail.

    GFD594872Courtesy of FORD MOTOR COMPANY
  5. NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

    1. NOTE: No sudden impact force is allowed.
      NOTE: Make sure that new fuel rail bolts are installed.

      Press the fuel rail down into the cylinder head injector bores by hand, then install and hand start the new number 3 and 4 bolts.

    2. Release the force before tightening.
    3. Install the remaining new bolts. Tighten all of the fuel rail bolts in the sequence shown and in the following 5 stages.

      Torque

      : Stage 1: Tighten to: : 89 lb.in (10 Nm) Stage 2: Back off to: : 0 lb.in (0 Nm) Stage 3: Wait 5 s Stage 4: Tighten to: : 124 lb.in (14 Nm) Stage 5: Tighten an additional: : 30 deg.

    Fig 1: Fuel Rail Tightening Sequence
    GFD594880Courtesy of FORD MOTOR COMPANY
    1. Install the fuel rail wire harness, connect the wire harness retainer to the fuel rail.
    2. Connect the fuel injector electrical connectors.
    3. Connect the fuel rail sensor electrical connector.
    GFD594870Courtesy of FORD MOTOR COMPANY
    1. Install the fuel rail insulator.
    2. Attach the wire harness retainers to the fuel rail.
    GFD594869Courtesy of FORD MOTOR COMPANY
  8. NOTE: Make sure that a new high-pressure fuel tube is installed.

    1. Install the new high-pressure fuel tube and the bracket bolts, then tighten the high pressure fuel tube flare nuts and the bracket bolts only finger tight at this stage.
    2. Calculate the correct torque wrench setting for the following torque using the Torque Wrench Adapter Formulas.

      Refer to the torque wrench adapter formula in the graphic below

      G00468730Courtesy of FORD MOTOR COMPANY

      Torque

      : High pressure fuel tube flare nuts, : Stage 1: Tighten to: : 62 lb.in (7 Nm) Stage 2: Tighten to: : 89 lb.in (10 Nm) Stage 3: Tighten an additional: : 38 deg. High-pressure fuel tube bracket bolts, tighten to: : 97 lb.in (11 Nm)

    GFD594881Courtesy of FORD MOTOR COMPANY
  9. Install the bracket, then install and tighten the nuts.

    Torque

    : 97 lb.in (11 Nm)

    GFD594867Courtesy of FORD MOTOR COMPANY
  10. Attach the wiring harness retainers, then connect the electrical connector.
    GFD594866Courtesy of FORD MOTOR COMPANY
  11. NOTE: When removing or installing the high-pressure fuel pump insulator, spreading the openings will reduce the risk of damage.

    Install the high-pressure fuel pump insulator.

    GFD594865Courtesy of FORD MOTOR COMPANY
  12. Connect the high-pressure fuel pump electrical connector.
    GFD594864Courtesy of FORD MOTOR COMPANY
  13. Install the air cleaner outlet pipe. Refer to: Air Cleaner Outlet Pipe
  14. Install the intake manifold. Refer to: Intake Manifold
  15. Connect the battery. Refer to: Battery Disconnect and Connect
  16. Pressurize the fuel system. Refer to: Fuel System Pressure Release
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