Fuel rail-3.9/5.2/5.9L engines. Fuel injector rail-4.7L engine

Fuel rail-3.9/5.2/5.9L engines

DESCRIPTION

The fuel injector rail is used to attach the fuel injectors to the engine. It is mounted to the engine (Fig. 5).

Fig. 5 Fuel Rail-3.9/5.2/5.9L Engine-Typical

1 - FUEL RAIL CONNECTING HOSE

2 - FUEL RAIL

3 - MOUNTING BOLTS (4)

OPERATION

High pressure from the fuel pump is routed to the fuel rail. The fuel rail then supplies the necessary fuel to each individual fuel injector.

A fuel pressure test port is located on the fuel rail.

A quick-connect fitting with a safety latch clip is used to attach the fuel line to the fuel rail.

The fuel rail is not repairable.

CAUTION: The left and right sections of the fuel rail are connected with a flexible connecting hose. Do not attempt to separate the rail halves at this connecting hose. Due to the design of this connecting hose, it does not use any clamps. Never attempt to install a clamping device of any kind to the hose.

When removing the fuel rail assembly for any reason, be careful not to bend or kink the connecting hose.

Fuel injector rail-4.7L engine

DESCRIPTION

The fuel injector rail is used to mount the fuel injectors to the engine. It is mounted to the intake manifold (Fig. 6).

OPERATION

High pressure fuel from the fuel pump is routed to the fuel rail. The fuel rail then supplies the necessary fuel to each individual fuel injector.

A fuel pressure test port is located on the fuel rail (Fig. 6). A quick-connect fitting with a safety latch is used to attach the fuel line to the fuel rail.

The fuel rail is not repairable.

CAUTION: 4.7L Engine Only: The left and right sections of the fuel rail are joined with a connector tube (Fig. 6). Do not attempt to separate the rail halves at this tube. Due to the design of this connecting tube, it does not use any clamps. Never attempt to install a clamping device of any kind to the tube. When removing the fuel rail assembly for any reason, be careful not to bend or kink the connector tube.