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Home >> Lincoln >> 2003 >> Navigator 4WD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine-5.4L >> In-Vehicle Repair >> Lower Intake Manifold >> Installation

Lower Intake Manifold: Installation

  1. Install the lower intake gaskets.
    Fig 1: Installing Lower Intake Gaskets
    G01562882Courtesy of FORD MOTOR CO.
  2. Install the radio ignition interference capacitors.
    Fig 2: Installing Radio Ignition Interference Capacitors
    G01562883Courtesy of FORD MOTOR CO.
  3. NOTE: Install new bolts.
    Fig 3: Installing Retaining Bolts
    G01562884Courtesy of FORD MOTOR CO.
  4. Position the lower intake manifold. Loosely install the retaining bolts.
  5. Tighten the retaining bolts in two stages, and then an additional 90 degrees in the sequence shown.
    • Tighten to 10 Nm (89 lb-in).
    • Tighten an additional 90 degrees.
      Fig 4: Tightening Retaining Bolts
      G01562885Courtesy of FORD MOTOR CO.
  6. Connect the wire harness pin-type retainer.
    Fig 5: Connecting Wire Harness Pin-Type Retainer
    G01562886Courtesy of FORD MOTOR CO.
  7. Connect the water temperature indicator sensor electrical connector.
    Fig 6: Connecting Water Temperature Indicator Sensor Electrical Connector
    G01562887Courtesy of FORD MOTOR CO.
  8. Position the vacuum harness and connect the vacuum line to the fuel injector pressure regulator.
    Fig 7: Connecting Vacuum Line To Fuel Injector Pressure Regulator
    G01562888Courtesy of FORD MOTOR CO.
  9. Connect the eight fuel injector electrical connectors.
    Fig 8: Connecting Fuel Injector Electrical Connectors
    G01562889Courtesy of FORD MOTOR CO.
  10. Install the upper generator support bracket and the four bolts.
    Fig 9: Installing Upper Generator Support Bracket And Bolts
    G01562890Courtesy of FORD MOTOR CO.
  11. Connect the heater water inlet hose, the upper radiator hose and the water heated fitting inlet hose.
    Fig 10: Connecting Heater Water Inlet Hose
    G01562891Courtesy of FORD MOTOR CO.
  12. Connect the engine water bypass return hose.
    Fig 11: Connecting Engine Water Bypass Return Hose
    G01562892Courtesy of FORD MOTOR CO.
  13. Connect the fuel hose spring lock couplings. For additional information, refer to FUEL SYSTEM-GENERAL INFORMATION .
  14. Install the upper intake manifold. For additional information, refer to UPPER INTAKE MANIFOLD .