Fuel Tank: Description and Operation

- The standard fuel tank has:
- 60.5 liter (16 gallon) capacity.
- single evaporative emission valve.

A fuel tank pressure/vacuum transducer:
- is installed in a cam-lock hole in the top of the fuel tank.
- sends a reference signal to the Powertrain Control Module (PCM) to indicate fuel system absolute pressure.






All vehicles are equipped with a restricted fuel tank filler pipe opening that allows only a non-leaded fuel nozzle to be inserted. The fuel tank filler pipe is equipped with an additional tube for attachment to a vapor management control valve sensing line.

The fuel tank filler pipe contains a restrictor, which is a narrow opening in the fuel tank filler pipe, covered by a spring steel trap door.

- The restricted fuel filler is manufactured as an assembly, and must be serviced by removal and replacement with a new fuel tank filler pipe.

- Fuel tank filler pipes are not to be modified in any way.

Fill limiting is accomplished through fuel tank filler pipe design. The fill limiting system is designed to permit an approximate 10 to 12 percent fuel tank volume air space when the fuel tank is filled to capacity. This air space provides for thermal expansion of fuel as well as being an aid to the fuel tank vapor vent system.