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Home >> Ford >> 2021 >> Bronco Base, 2D Utility, 2.3L Eng VIN H, Part Time T/Case Control, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Fuel Charging And Controls - 2.3L ECOBOOST (199KW/270PS) >> Removal And Installation >> Fuel Rail >> Installation
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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.

    GFD625046Courtesy 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.

    GFD624455Courtesy 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. Install the new fuel injector O-rings.
    3. Install the new the fuel injector clips.

    GFD625351Courtesy 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.

    GFD625346Courtesy of FORD MOTOR COMPANY
  5. NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

    • 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.

    • Release the force before tightening.

    • 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: : 18 lb.ft (25 Nm) Stage 5: Tighten an additional: : 30 deg.

    Fig 1: Fuel Rail Bolts Tightening Sequence
    GFD625352Courtesy of FORD MOTOR COMPANY
    1. Install the fuel rail wire harness, connect the wire harness retainer to the fuel rail.
    2. Connect the fuel rail pressure sensor electrical connector.
    GFD625344Courtesy of FORD MOTOR COMPANY
    1. Install the fuel rail insulator.
    2. Attach the wire harness retainers to the fuel rail.
    GFD625343Courtesy of FORD MOTOR COMPANY
  8. Install the shield, then install and tighten the bolts.

    Torque: 18 lb.ft (25 Nm)

    GFD625342Courtesy of FORD MOTOR COMPANY
  9. NOTE: Make sure that a new high-pressure fuel tube is installed.

    1. Install the new high-pressure fuel tube and the bracket studbolts, then tighten the high pressure fuel tube flare nuts and the bracket studbolts only finger tight at this stage.
    2. Calculate the correct torque wrench setting for the following torque using the Torque Wrench Adapter Formulas below.
      G00468730Courtesy of FORD MOTOR COMPANY

      Torque: High pressure fuel tube flare nuts, : Stage 1: Tighten to: : 71 lb.in (8 Nm) Stage 2: Tighten to: : 89 lb.in (10 Nm) Stage 3: Tighten an additional: : 38 deg. High-pressure fuel tube bracket studbolts, tighten to: : 97 lb.in (11 Nm)

    GFD625353Courtesy of FORD MOTOR COMPANY
  10. Connect the electrical connector, then attach the wiring harness retainers.
    GFD625340Courtesy of FORD MOTOR COMPANY
  11. NOTE: When installing the high-pressure fuel pump noise insulator, spreading the openings will reduce the risk of damage.

    Install the high-pressure fuel pump noise insulator.

    GFD624587Courtesy of FORD MOTOR COMPANY
    1. Install the high-pressure fuel pump bracket and the bolts finger tight.
    2. Tighten the bolts in the sequence shown.

      Torque: 97 lb.in (11 Nm)

    Fig 2: High-Pressure Fuel Pump Bracket Bolts Tightening Sequence
    GFD624588Courtesy of FORD MOTOR COMPANY
  13. Install the lower foam high-pressure fuel pump cover and the retainer.
    GFD624589Courtesy of FORD MOTOR COMPANY
    1. Install the lower plastic high-pressure fuel pump cover and the retainer.
    2. Position the fuel tube and connect the spring lock coupling. Refer to: Spring Lock Couplings .
    GFD624590Courtesy of FORD MOTOR COMPANY
  15. Install the upper plastic and foam high-pressure fuel pump cover and attach the tabs.
    GFD625337Courtesy of FORD MOTOR COMPANY
    1. Position the wiring harness and attach the retainers.
    2. Attach the wiring harness retainer to the rear engine lift eye.
    GFD624248Courtesy of FORD MOTOR COMPANY
  17. Install the intake manifold. Refer to: Intake Manifold .
  18. Connect the battery negative cable. Refer to: Battery Disconnect and Connect .
  19. Pressurize the fuel system. Refer to: Fuel System Pressure Release .
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