OEM 2008 Ford Expedition Fuel Injector

2008 Ford Expedition Fuel Injector Parts Q&A

• Q: What safety precautions should be taken when servicing the fuel injector and fuel rail on 2008 Ford Expedition?

  A: Avoid any contact between fuel components and smoking items or open flames since you will find flammable mixtures inside them during fuel injector and fuel rail servicing. A correct safety procedure demands the release of fuel system pressure before disconnection of any components to avoid fuel spraying since pressure remains elevated after engine shutdown. Fuel injection equipment must be kept clean at all times while you should use blanking plugs to protect engine parts through their open orifices or tubes. The procedure starts with removing the battery ground cable followed by breaking the spring lock coupling at the fuel supply tube. The removal process starts by disconnecting and untucking both quick connect couplings from the crankcase vent tube and removing the air cleaner outlet pipe. Separate the generator wiring harness retainer from the air cleaner outlet pipe-to-throttle body adapter before you remove its four screws by applying new engine coolant to the seal and tightening everything to 10 Nm (89 lb-in). First disconnect quick connect couplings to remove the PCV tube and afterward separate the electronic throttle control and throttle position sensor together with the heated PCV intake fitting and eight fuel injector electrical connectors. Reinstall the fuel rail by tightening its four bolts to 10 Nm (89 lb-in) after removing them initially. the combination of fuel rail and fuel injectors should come out as one piece before separating the eight fuel injector-to-fuel rail locking clips. New O-ring seals should use material that resists fuel damage and the old rings must be discarded while the new rings need engine oil lubrication before fitting. You should finish the installation process by reversing the steps of removal.