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Fuel Rail: Installation

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  1. NOTE: Use O-ring seals that are made of special fuel-resistant material. Use of ordinary O-ring seals may cause the fuel system to leak.

    Install new O-ring seals on the fuel injectors.

  2. NOTE: The fuel injector clip can be reused if it is not damaged during removal. If the clip is reused, the 2 sides of the clip should be squeezed back into shape by placing it between index finger and thumb.
    NOTE: Lubricate the upper and lower fuel injector O-ring seals with clean engine oil prior to installation.

    Install the fuel injectors and retaining clips onto the fuel rail.

  3. Install the fuel rail and fuel injectors as an assembly onto the intake manifold.
  4. Install the 4 bolts and tighten in the sequence shown in illustration in 3 stages.
    • Stage 1: Hand tighten.
    • Stage 2: Tighten to 10 Nm (89 lb-in).
    • Stage 3: Tighten an additional 90 degrees.
      Fig 1: Identifying Fuel Injectors And Fuel Rail Bolts Tightening Sequence
      G07411396Courtesy of FORD MOTOR CO.
  5. Connect the fuel supply tube. For additional information, refer to the quick connect procedure in FUEL SYSTEM - GENERAL INFORMATION .
  6. Connect the 8 fuel injector electrical connectors.
  7. Install the LH and RH fuel rail insulators.
  8. Connect the 2 EVAP tube retaining clips to the fuel rail.
  9. Connect the battery ground cable. For additional information, refer to BATTERY, BATTERY MOUNTING & BATTERY CABLES .