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Dodge Durango
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Fuel System » Fuel delivery system » Description and operation
Fuel tank filler tube cap

DESCRIPTION

The plastic fuel tank filler tube cap is threaded onto the end of the fuel fill tube. Certain models are equipped with a 1/4 turn cap.

OPERATION

The loss of any fuel or vapor out of fuel filler tube is prevented by the use of a pressure-vacuum fuel fill cap. Relief valves inside the cap will release fuel tank pressure at predetermined pressures. Fuel tank vacuum will also be released at predetermined values.

This cap must be replaced by a similar unit if replacement is necessary. This is in order for the system to remain effective.

Fig. 6 Fuel Injector Rail-4.7L V-8 Engine Fig. 6 Fuel Injector Rail-4.7L V-8 Engine

1 - MOUNTING BOLTS (4)

2 - INJ.#7

3 - INJ.#5

4 - QUICK-CONNECT FITTING

5 - INJ.#3

6 - FUEL INJECTOR RAIL

7 - INJ.#1

8 - CONNECTOR TUBE

9 - INJ.#2

10 - INJ.#4

11 - INJ.#6

12 - INJ.#8

13 - PRESSURE TEST PORT CAP

CAUTION: Remove fill cap before servicing any fuel system component to relieve tank pressure. If equipped with a California emissions package and a Leak Detection Pump (LDP), the cap must be tightened securely. If cap is left loose, a Diagnostic Trouble Code (DTC) may be set.

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    Dodge Durango Service Manual / Fuel System / Fuel delivery system / Description and operation / Fuel tank filler tube cap

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