on the driver side on top of differential hub
The rear differential plug is located on the inside top part of the differential. Where the drive shaft connects.
beats me
The 5.4 liter V8 engine , available in the 1998 Ford Expedition has a Coil On Plug ( C.O.P. ) ignition system
The engine coolant drain plug, on a 1998 Ford expedition, is located on the bottom of the radiator. The drain plug will come out by turning to the left.
I had the same problem with a 1999 Expedition and it was a bad plug. Ford had a problem also with the plugs blowing out. It cost me about 1200.00
On a 1998 Ford Expedition : The 4.6 liter V8 has the Electronic Distributorless Ignition System ( EDIS ) and it has ( 2 coil packs ) along with the ( 8 spark plug wires ) ------------------------------------------------------------------------------------------------ The 5.4 liter V8 has the Coil On Plug ignition system and has ( 8 ) individual coils
The recommended spark plug gap for a 2003 Ford Expedition 4.6 is .054"
Replace freeze plug in a 1998 ford windstar ?
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 a 1998 Ford Expedition : One way is : The 4.6 has the Electronic Distributorless Ignition System ( EDIS ) and has ( 2 ) coil packs and ( 8 ) SPARK PLUG WIRES The 5.4 has the Coil On Plug ( C.O.P. ) ignition system and has ( 8 ) individual coils
( .054 inch ) according to the 1997 Ford Expedition Owner Guide