On a 2003 Ford F-150, coil 4 is located on the driver's side of the engine, specifically on the 5.4L V8 engine. It is positioned near the back of the engine, adjacent to the intake manifold. You can identify it by tracing the ignition wires from the spark plugs, as each coil corresponds to a specific cylinder. For precise access, it may be necessary to remove any components obstructing the view and reach of the coil.
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford F-150
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
1 - 3 - 7 - 2 - 6 - 5 - 4 - 8 (coil on plug ignition )
coil---3---4 pack--2---6 plug---1---5
On a 2003 Ford Expedition : It has the Coil On Plug ( C.O.P.) ignition system with ( 8 ) individual coils firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
coil----3---4 pack---2---6 plug----1---5
1 - 3 - 7 - 2 - 6 - 5 - 4 - 8 coil on plug ignition
How do you install a rear sway bar on a 2003 f 150 4 wheel drive
coil----3---4 pack---2---6 plug----1---5
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
On a 2003 Ford Expedition : It has the Coil On Plug ( C.O.P. ) ignition system with ( 8 ) individual coils firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
On a 2003 Ford Escape , 3.0 liter DOHC " Duratec " V6 engine : firewall 1-----2-----3 4-----5-----6 front of vehicle > driver