Fuel Rails & Fuel Injectors: Installation
- To install, reverse removal procedure using NEW grommets, "O" rings, insulators and gaskets. Coat "O" ring with gasoline before installing "O" ring on fuel injector. Use twisting motion when installing fuel injector on fuel rail. Ensure insulators and spacers are installed on intake manifold.
- When installing fuel rail, install fuel rail with fuel injectors on intake manifold. Loosely install fuel rail-to-intake manifold bolts.
- Ensure fuel injectors rotate smoothly. If fuel injectors do not rotate smoothly, check for improper "O" ring installation. Ensure electrical connector on each fuel injector is facing upward.
- Tighten fuel rail-to-intake manifold bolts to specification. See TORQUE SPECIFICATIONS .NOTE: Ensure Gray electrical connectors are installed on fuel injectors on cylinders No. 1, 3 and 5, and the Brown electrical connectors are installed on fuel injectors on cylinders No. 2, 4 and 6.
- To install remaining components, reverse removal procedure. Tighten bolts/nuts to specification. Fill cooling system.
- Operate fuel pump and check for fuel leaks. See FUEL PUMP OPERATION under FUEL SYSTEM in BASIC TESTING article.