OEM Ford Crown Victoria Fuel Rail

Ford Crown Victoria Fuel Rail Parts Questions & Experts Answers

• Fuel Rail
  5W7Z-9F792-AC
  Q: How should one safely service the fuel rail and what steps are involved in the process on Ford Crown Victoria?

  A: Safety during fuel rail servicing requires personnel to stay away from smoking or open fire sources that exist near fuel components because dangerous highly flammable mixtures exist. A safe service practice includes fuel pressure reduction followed by fuel tube disconnection to ensure spraying accidents do not occur and battery ground cable disconnection is necessary when maintaining EVAP or fuel system components. Engine personnel should remove all fuel residue from the engine section because any ignition risk needs to be eliminated before starting the engine. Vehicle setup begins with deactivating fire suppression when systems permit followed by hoisting the vehicle at NEUTRAL position. Begin by lowering fuel system pressure and removing the buckle grounded to the battery before taking off the fuel tube at the fuel rail. Erase all connections related to the Throttle Body (TB) and also remove the EGR system module tube as well as the brake booster vacuum hose from the TB spacer along with the EVAP vapor tube and crankcase ventilation tube and intake manifold vacuum hose. Release the wire harness retainer from the crash bracket first as a part of the necessary steps. You should tighten the crash bracket bolts to 25 Nm (18 lb-ft) after installation. Disconnect the eight Fuel Injector electrical connectors as well as the fuel rail pressure and temperature sensor vacuum hose combined with its electrical connector and the EGR module vacuum and electrical connectors. Begin by removing intake manifold shield bolts while torquing them to 10 Nm (89 lb-in) and then switch to the four fuel rail bolts which require the same torque value of 10 Nm (89 lb-in). Separate the fuel rail and fuel injectors from each other yet discard the O-ring seals because these special fuel-resistant components should not return to service. The vehicle requires a repower of its fire suppression system after fire suppression system installation. Follow the removal steps in reverse direction while installing new upper and lower fuel injector O-ring seals that require engine oil lubrication before installation.