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Home >> Ford >> 2018 >> Focus SEL, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Fuel Charging And Controls - 2.3L ECOBOOST (257KW/350PS) - Mi4) >> Removal And Installation >> Fuel Rail >> Installation

Fuel Rail: Installation

WARNING: This page is about a different variant/trim than selected.
  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.

    GFD267030Courtesy 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. 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.

    GFD266633Courtesy 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: Use fuel injector O-ring seals that are made of special fuel-resistant material. The use of ordinary O-ring seals may cause the fuel system to leak. Do not reuse the O-ring seals.
      NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

      Install the new fuel injector O-ring seals and lubricate them with clean engine oil.

    3. Install the new the fuel injector clips.

    GFD266634Courtesy of FORD MOTOR COMPANY
  4. NOTE: The FRP sensor must be replaced if it is removed from the fuel rail.
    NOTE: The anti-rotation finger of the fuel injector must slip into the groove of the fuel rail cup.

    Install the fuel injectors to the fuel rail. Refer to: Fuel Rail Pressure (FRP) Sensor .

    GFD267031Courtesy of FORD MOTOR COMPANY
  5. NOTE: Do not lubricate the new lower Teflon® fuel injector seals.

    Install the fuel rail, push down on the fuel rail above the injectors. Install and tighten the fuel rail bolts in the sequence shown and in the following 2 stages.

    Torque

    :Stage 1: 71 lb.in (8 Nm) Stage 2: 26°

    Fig 1: Fuel Rail Bolt Tightening Sequence
    GFD267032Courtesy of FORD MOTOR CO.
  6. Connect the fuel rail pressure sensor electrical connector and the fuel injector electrical connectors.
    GFD267022Courtesy of FORD MOTOR COMPANY
  7. Install the fuel rail insulator. Connect the electrical connector retainer to the fuel rail tab. Attach the coolant hose to the retainers.
    GFD267021Courtesy of FORD MOTOR COMPANY
  8. NOTE: Make sure that a new high-pressure fuel tube is installed.
    NOTE: Calculate the correct torque wrench setting for the following torque using the Torque Wrench Adapter Formulas.
    G00468730
    NOTE: Only tighten the 2 high-pressure fuel tube flare nuts finger tight at this stage.
    NOTE: Only tighten the high-pressure fuel tube retaining nut and bolt finger tight at this stage.

    1. Install the new high-pressure fuel tube and the high-pressure fuel tube retaining nut and bolt.
    2. Tighten the high pressure fuel tube flare nuts in the following 3 stages.

      Torque

      :Stage 1: 62 lb.in (7 Nm) Stage 2: 133 lb.in (15 Nm) Stage 3: 30°

    3. Tighten the high-pressure fuel tube nut.

      Torque

      : 150 lb.in (17 Nm)

    4. Tighten the high-pressure fuel tube bolt.

      Torque

      : 89 lb.in (10 Nm)

    GFD267033Courtesy of FORD MOTOR COMPANY
    1. Install the air cleaner outlet pipe, then install and tighten the air cleaner outlet pipe retainer.

      Torque

      : 89 lb.in (10 Nm)

    2. Connect the quick release coupling and attach the hose retainers. Refer to: Quick Release Coupling .

    • Tighten the air cleaner outlet pipe clamps.

      Torque

      : 44 lb.in (5 Nm)

    GFD267019Courtesy of FORD MOTOR COMPANY
  10. Install the intake manifold. Refer to: Intake Manifold .
  11. Pressurize the fuel system pressure. Refer to: Fuel System Pressure Release .
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