F 550 2WD Super Duty V8-6.4L DSL Turbo (2008)
Auxiliary Fuel Tank - 72L (19 Gal) (Part 2)
Exploded View
Removal and Installation
WARNING: Remove the fuel filler cap slowly. The fuel system may be under pressure. If the fuel filler cap is venting vapor or if you hear a
hissing sound, wait until it stops before completely removing the fuel filler cap. Otherwise, fuel may spray out. Failure to follow these
instructions may result in serious personal injury.
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Disconnect the battery ground cable.
3. Drain the fuel tank until the fuel level is at or below half.
4. Loosen the hose clamps and disconnect the fuel tank filler pipe and fuel tank filler pipe vent hose from the fuel tank.
5. Remove the fuel tank filler cap.
6. Remove the 3 fuel tank filler pipe upper retaining screws.
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On early build vehicles, install new fuel tank filler pipe retaining screw plastic inserts, if required.
7. Remove the fuel filler pipe assembly.
8. To install, reverse the removal procedure.
