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Fuel System & Engine Control System: Removal & Installation Mercury Montego III

Fuel System 1 illustration ~330 words

Removal and Installation

  1. Remove the air cleaner outlet pipe. For additional information, refer to «INTAKE AIR DISTRIBUTION & FILTERING»(ref-233002) .
  2. Disconnect the electronic throttle body coolant feed and return hoses. Disconnect the coolant hoses. Plug the coolant hoses.
  3. Disconnect the electronic throttle body electrical connector.
  4. Remove the bolts and the throttle body. To install, tighten to 10 Nm (89 lb-in).
  5. Remove and discard the throttle body gasket.
  6. Clean and inspect the sealing surfaces.
  7. To install, reverse the removal procedure. Install a new throttle body gasket.

Scheme 1

Scheme 1: Fuel Charging Wiring Harness
Scheme 1: Fuel Charging Wiring Harness
WARNINGDo not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in personal injury.
  1. Remove the lower intake manifold. For additional information, refer to «ENGINE»(ref-233006) .
  2. Disconnect the fuel rail pressure and temperature sensor electrical connector.
  3. Disconnect the 6 fuel injector electrical connectors.
  4. Detach the fuel charging wiring harness from the lower intake manifold assembly.
  5. To install, reverse the removal procedure.
WARNINGDo not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always present and can be ignited. Failure to follow these instructions can result in personal injury.
WARNINGFuel in the fuel system remains under high pressure, even when the engine is not running. Before working on or disconnecting any of the fuel lines or fuel system components, the fuel system pressure must be relieved. Failure to follow these instructions can result in personal injury.
  1. Remove the lower intake manifold. For additional information, refer to «ENGINE»(ref-233006) .
  2. Disconnect the fuel rail pressure and temperature sensor electrical connector.
  3. Disconnect and remove the vacuum harness.
  4. Remove the 4 fuel rail bolts. To install, tighten to 10 Nm (89 lb-in).
  5. Separate the fuel rail and fuel injectors from the lower intake manifold.
  6. Disconnect the 6 fuel injector electrical connectors.
  7. Detach the fuel charging wiring harness from the lower intake manifold assembly.
  8. Remove the retaining clips and fuel injectors from the fuel rail.
  9. Remove and discard the fuel injector O-ring seals.
  10. To install, reverse the removal procedure. Lubricate the new O-ring seals with clean engine oil prior to installation.
  1. Disconnect the battery ground cable. For additional information, refer to «BATTERY, MOUNTING AND CABLES»(ref-233036) .
  2. Remove the rear seat cushion and the rear corner backrest. For additional information, refer to «SEATING»(ref-233048) .
  3. Remove the C-pillar trim panel. For additional information, refer to «INTERIOR TRIM AND ORNAMENTATION»(ref-233049) .
  4. Disconnect the fuel pump driver module (FPDM) electrical connector.
  5. Remove the 2 nuts and the FPDM. To install, tighten to 5 Nm (44 lb-in).
  6. To install reverse the removal procedure.

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