OEM Lincoln LS Fuel Rail

Lincoln LS Fuel Rail Parts and Q&A

• Fuel Rail
  XW4Z-9F792-AA
  Q: What precautions should be taken when servicing the fuel rail to avoid personal injury and ensure proper operation on Lincoln LS?

  A:

  People must stay away from fuel injection components when servicing the fuel rail because highly flammable mixtures in those components can lead to personal injury so no smoking or carrying any lighted tobacco or open flames should be allowed. The fuel system contains high pressure during engine idle conditions thus you must vent the fuel system pressure before removing any fuel related components or tubing. The upper Intake Manifold should be taken off first before performing fuel system pressure relief. The engine control sensor electrical connector behind the lower intake manifold on the rear side of the wiring shield requires disconnecting its fuel charging wiring connector. The technician should begin by disconnecting the fuel pressure sensor vacuum hose along with the fuel pressure sensor electrical connector before proceeding to disconnect the fuel line. Proper fuel line plugging prevents leakage during the process of disconnecting. The four bolts need removal to separate the fuel supply manifold assembly where removing the lower intake manifold assembly from the engine becomes mandatory. The four bolts securing the fuel supply manifold assembly need to be tightened using a specific installation sequence. First reestablish the fuel line and the fuel pressure sensor electrical connector along with the fuel pressure sensor vacuum hose. Complete restoration by connecting the fuel charging wiring connector from the engine control sensor electrical connector. A test for fuel system pressure should be conducted to verify correct functioning of the system.
• Fuel Rail
  1R8Z-9F792-AA
  Q: How should one service the fuel rail safely to avoid personal injury on Lincoln LS?

  A:

  Keep away from fuel injection components while performing fuel rail service operations because highly flammable mixtures exist in these areas and cause personal injury. The system maintains high pressure fuel throughout the off-engine phase thus safety precautions should always be followed while working in the fuel system. Clearing fuel system pressure must happen before you detach any fuel components or lines. Start your work by taking out the upper Intake Manifold before getting rid of fuel system pressure. Users should disconnect the fuel charging wiring connector from the engine control sensor electrical connector behind the lower intake manifold on the rear side of the wiring shield. The next step remains to remove the fuel pressure sensor vacuum hose in addition to its electrical connector before extracting the fuel line while stocking the line right after disconnecting to stop any leakage. The four bolts holding the fuel supply manifold assembly must be removed while recognizing that separation of the lower intake manifold assembly from the engine is required. Install the fuel supply manifold assembly by placing its position correctly and then torque the four bolts based on the correct installation sequence. You should enable the fuel line then reconnect the fuel pressure sensor electrical connector alongside the fuel pressure sensor vacuum hose before activating the fuel charging wiring connector from the engine control sensor electrical connector. Testing of the fuel system pressure should be the final step to validate its correct functionality.