1. Refuel: This is the most important step. Add gasoline to the tank. The amount needed will depend on how far the fuel gauge was from empty when the engine stopped.
2. Turn the ignition key (or press the start button): Once you've added enough fuel, try to start the vehicle normally. It should start right up, assuming there were no other problems.
3. If it doesn't start: If the engine cranks but won't start, the fuel pump might need a few seconds to prime after being starved of fuel. Try turning the key to the "on" position (without starting the engine) for a few seconds, then try starting again.
Potential Issues (Beyond Simply Running Out of Gas):
While unlikely, running completely out of gas can sometimes cause minor issues. If, after refueling, your Excursion still won't start, consider these:
* Fuel pump: Although rare, a completely empty tank can sometimes stress the fuel pump.
* Check the fuel lines: Make sure there aren't any obstructions in the fuel lines, although this is highly unlikely unless there was some pre-existing problem.
* Battery: Repeated attempts to crank the engine can drain the battery. If the battery is weak, it may require a jump start.
If, after refueling and trying the above steps, your Ford Excursion still won't start, you may have a separate mechanical issue that needs professional attention. Don't continue cranking the engine repeatedly as this could damage the starter motor.