Fuel Rail - Removal

5.7L

WARNING: The fuel system is under constant pressure even with engine off. Before servicing the fuel rail, fuel system pressure must be released.

CAUTION: The left and right fuel rails are replaced as an assembly. Do not attempt to separate rail halves at connector tube. Due to design of tube, it does not use any clamps. Never attempt to install a clamping device of any kind to tube. When removing fuel rail assembly for any reason, be careful not to bend or kink tube.





1. Remove fuel tank filler tube cap.
2. Perform fuel system pressure release procedureService and Repair.
3. Remove negative battery cable at battery.
4. Remove flex tube (air cleaner housing to engine).
5. Remove air resonator box at throttle body.
6. Disconnect electrical connectors at all 8 fuel injectors. Push red colored slider away from injector (1). While pushing slider, depress tab (2) and remove connector (3) from injector.
7. Disconnect throttle body electrical connectors.





8. Disconnect fuel supply tube quick connect fitting at the fuel rail, Service and Repair.
9. Remove four fuel rail mounting bolts (1) and holddown clamps.
10. Gently rock and pull left side of fuel rail until fuel injectors just start to clear machined holes in intake manifold. Gently rock and pull right side of rail until injectors just start to clear intake manifold head holes. Repeat this procedure (left/right) until all injectors have cleared machined holes.
11. Remove fuel rail (with injectors attached) from engine.
12. If fuel injectors are to be removed, Fuel Injector - Removal.