Hello morris_valen: My name is Roger and I can help. The fire order is 1-3-7-2-6-5-4-8. Number 8 cylinder is the rear plug on the drivers side. The cylinders run front to back on the passenger side as 1-2-3-4- and on the opposite side front to back 5-6-7-8.
Should you need further help please just ask. Please rate this answer as that way I know the answer was helpful. Thank You for using Fix Ya. Roger
2004 Ford Expedition 2WD/4WD 4.6 liter V-8 VIN "W"
2004 Ford Expedition 2WD/4WD 5.4 liter SOHC V-8 VIN "L"Firing order 1-3-7-2-6-5-4-8
Cylinder # from passenger side front to firewall 1-2-3-4
Cylinder # from drivers side front to firewall 5-6-7-8
Good luck and hope this helps.
Drivers side all the way back. 1234 is on passagers side, 5678 drivers side.
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