firewall
4 - 8
3 - 7
2 - 6
1 - 5
front
# 1 cylinder is on the passenger side of the engine , it is the front cylinder
The 1 cylinder on a ford expedition 5.4L engine. Is located on the Pass. Side front. The first one you see.
Number 8 spark plug location on a 4.6 liter ford 2000. Is located on the Driver Side , Last one near the fire wall...
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
Cylinder # 1 is the front cylinder on the passenger side and Cylinder # 4 is the back cylinder ( by firewall ) on the passenger side firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford Expedition
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford Expedition ( V8 )
(looking at the engine) Left bank, 3rd cylinder back.
Passanger side, 2nd cylinder towards the firewall, counting from the front.
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford Expedition
it is the back cylinder (closest to the firewall) on the passenger side. If you are diagnosing a missfire code on cyl number 4, you probably have a bad ignition coil on that cylinder
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
I can't tell from here. Check the spark plug in the #5 cylinder, and the ignition wire to the plug.