Dodge Durango

 Service Manual

Fuel System » Fuel delivery system » Description and operation
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.

Pcm vin reprogramming

Fuel delivery system

Fuel pump module

Fuel pump

Fuel gauge sending unit

Fuel filter/fuel pressure regulator

Fuel tank

Fuel injectors

Fuel rail-3.9/5.2/5.9L engines

Fuel injector rail-4.7L engine

Fuel tank filler tube cap

Fuel tubes/lines/hoses and clamps

Quick-connect fittings