Genuine Ford Focus Fuel Injector

Ford Focus Fuel Injector Parts Questions & Answers

• Injector Assembly
  8S4Z-9F593-A
  Q: How to replace Fuel Injector,Fuel Pressure Regulator and Fuel Rail in a Ford Focus's engine?

  A: For throttle body replacement, disconnect the negative battery cable and remove the air intake duct. Detach throttle and cruise control cables for 2007 and earlier models, and disconnect wiring. Remove bolts and withdraw throttle housing, installing a new rubber gasket during installation.Replacing fuel rail and injectors involves relieving residual fuel pressure and disconnecting the negative battery cable. Remove the air intake duct and accelerator cable for 2007 and earlier models. Disconnect the injector wiring busbar, remove the injectors, and remove bolts securing the fuel rail. Replace old O-rings during reassembly.For fuel pressure regulator, relieve fuel pressure, disconnect the negative battery cable, and remove the regulator from the fuel rail. Replace the O-ring during reassembly.Idle air control valve replacement requires removing the air cleaner intake duct and disconnecting the wiring plug. Remove valve from intake manifold, installing a new rubber seal during reassembly.For mass airflow sensor, disconnect air intake duct and wiring plug. Remove sensor from air cleaner cover.The PCM on 2007 and earlier models is located behind the dash. Disconnect negative battery cable, remove the glovebox, central locking module, and PCM.Crankshaft position sensor removal involves alternator removal and wiring plug disconnection. For 2008 and later models, use appropriate timing peg and CKP sensor alignment tool.Camshaft position sensor replacement involves unscrewing retaining bolt and disconnecting wiring plug.Cylinder head temperature sensor requires disconnecting wiring plug and sensor removal from cylinder head. To replace the throttle position sensor, disconnect wiring plug and remove the unit from the throttle housing. For accelerator pedal position sensor, disconnect wiring harness and remove mounting bolts.Swirl control valve sensor replacement in 2008 and later models requires throttle body removal and disconnection of wiring and vacuum hose from swirl control assembly. Remove actuator mounting screws and sensor.