What you might be thinking of are procedures that *indirectly* affect the fuel system, such as:
* Disconnecting the battery: This can reset the computer's learned fuel trims, which might help with some minor fuel delivery problems. However, this is not a guaranteed solution and should only be done as a last resort after checking other potential causes with a mechanic or by consulting the owner's manual. It also means you'll lose your radio presets and other settings.
* Troubleshooting a specific fuel-related fault code: If your Expedition has a check engine light on, an OBD-II scanner can read the diagnostic trouble codes (DTCs). Some codes may require professional attention, and a simple reset won't help if there's a genuine mechanical problem.
If you're having problems with your Expedition's fuel system (poor performance, stalling, etc.), don't try random resets. Take it to a mechanic for proper diagnosis and repair.