* Under the hood: This is the main power distribution box and contains larger fuses and relays for major electrical components. It's usually near the battery.
* Inside the vehicle, usually under the dashboard on the driver's side: This box contains smaller fuses and circuits for interior accessories and components. You might need to remove a panel or cover to access it.
To be absolutely certain of the location and to identify specific fuses, you should consult your 2004 Ford Expedition owner's manual. The manual will have diagrams showing the location and function of each fuse and relay.
