Fuel Rails & Fuel Injectors: Installation
- Coat NEW "O" rings with gasoline and install on fuel injector. Install NEW insulator on fuel injector.CAUTION: Fuel injectors must be installed on fuel rail so fuel injector electrical connector is facing the proper direction. On the 2 outer fuel injectors, ensure fuel injector electrical connector is facing inward, toward center of fuel rail. On the 2 inner fuel injectors, ensure fuel injector electrical connector is facing outward, toward each end of fuel rail.
- Install fuel injector on fuel rail. Ensure fuel injector electrical connector is facing the proper direction. On the 2 outer fuel injectors, fuel injector electrical connector should face inward, toward center of fuel rail. On the 2 inner fuel injectors, fuel injector electrical connector should face outward, toward each end of fuel rail.
- Install fuel injector covers. Tighten bolts go specification. See TORQUE SPECIFICATIONS table.
- To install remaining components, reverse removal procedure using NEW insulators and gaskets. Ensure spacers and insulators are installed when installing fuel rail.
- Tighten fuel rail-to-cylinder head bolts and fuel inlet pipe-to-fuel rail union bolt to specification. See TORQUE SPECIFICATIONS table. Operate fuel pump and check for fuel leaks. See FUEL PUMP OPERATION in BASIC TESTING article.