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Home › Mercury › 2004 › Marauder › Repair and Diagnosis › Engine Mechanical › Mechanical › Engine 4.6L › In-Vehicle Repair › Lower Intake Manifold › Removal

Lower Intake Manifold: Removal

  1. Drain the engine cooling system. For additional information, refer to ENGINE COOLING .
  2. Remove the upper intake manifold. For additional information, REFER to UPPER INTAKE MANIFOLD .
  3. Disconnect the fuel line spring lock coupling. For additional information, refer to FUEL SYSTEM-GENERAL INFORMATION .
  4. Disconnect the engine coolant temperature (ECT) sensor electrical connectors.
    Fig 1: Disconnecting Engine Coolant Temperature (ECT) Sensor Electrical Connectors
    G02756681Courtesy of FORD MOTOR CO.
  5. Disconnect the coolant hoses.
    Fig 2: Disconnecting Coolant Hoses
    G02756682Courtesy of FORD MOTOR CO.
  6. Disconnect the coolant hoses, the electrical connectors, and the wiring harness retainer.
    Fig 3: Disconnecting Coolant Hoses, Electrical Connectors, And Wiring Harness Retainer
    G02756683Courtesy of FORD MOTOR CO.
  7. Remove the accessory drive belt. For additional information, refer to SPECIFICATIONS & DRIVE BELT ROUTING .
  8. Remove the bolts and the generator support bracket.
    Fig 4: Removing Generator Support Bracket
    G02756684Courtesy of FORD MOTOR CO.
  9. Remove the crossover tube.
    Fig 5: Removing Crossover Tube
    G02756685Courtesy of FORD MOTOR CO.
  10. Remove the bolts and the generator.
    Fig 6: Removing Bolts And Generator
    G02756686Courtesy of FORD MOTOR CO.
  11. Disconnect the electrical connector and the vacuum hose from the fuel pressure sensor.
    Fig 7: Disconnecting Electrical Connector And Vacuum Hose From Fuel Pressure Sensor
    G02756687Courtesy of FORD MOTOR CO.
  12. Separate the wiring harness from the fuel injection supply manifold studs in four places.
    Fig 8: Separating Wiring Harness From Fuel Injection Supply Manifold Studs
    G02756688Courtesy of FORD MOTOR CO.
  13. Disconnect the eight fuel injector electrical connectors.
    Fig 9: Disconnecting Eight Fuel Injector Electrical Connectors
    G02756689Courtesy of FORD MOTOR CO.
  14. Remove the ten bolts in the sequence shown, and raise the lower intake manifold slightly.
    Fig 10: Lower Intake Manifold Bolts Removal Sequence
    G02756690Courtesy of FORD MOTOR CO.
  15. Disconnect the fuel charging wiring harness from the rear of the lower intake manifold.
    • Remove the manifold.
  16. Remove the intake manifold gaskets.
    • Clean and inspect the sealing surfaces.
    Fig 11: Removing Manifold
    G02756691Courtesy of FORD MOTOR CO.
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