How about somebody actually looking in their manual for us? I have a used '99 Exp. no manual, and inside hood sticker missing. The plug gap is listed in your owner's manual and under the hood on a placard. ----------------------------------------- .052 - .056 inch for both the 4.6 L and 5.4 L ( Helpfull )
The recommended spark plug gap for a 2003 Ford Expedition 4.6 is .054"
Check under the hood decal info.
In a 2002 Ford Expedition : ( No , not really ) both the 4.6 and the 5.4 have the Coil On Plug ( C.O.P. ) ignition system , but there is a connection between the individual coil and the spark plug
On the 5.4L you will find a coil pack on each spark plug. Meaning 8 coil packs for 8 spark plugs.
On a 1999 Ford Expedition : There is no distributor cap The 4.6 has the ( EDIS / Electronic Distributorless Ignition System ) with ( 2 ) coils and ( 8 ) spark plug wires The 5.4 has the Coil On Plug ( C.O.P. ) ignition system with ( 8 ) individual coils
On a 1999 Ford Expedition , 5.4 firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle It has the Coil On Plug ( C.O.P. ) ignition system with ( 8 ) individual coils
at each spark plug
Ford Expedition.
There 8 Spark plugs not 4.
The spark plug gap for the 5.0 L - V8 engine - in a 1999 Ford Explorer is ( .052 - .056 inch )
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
No , both the 4.6 and 5.4 liter V8 engines in a 2000 Ford Expedition have Coil On Plug ( C.O.P. ) ignition systems