I assume you have the 5.4 liter V8 engine with the ( 8 ) individual coils :
firewall
4 - 8
3 - 7
2 - 6
1 - 5
front of 1998 Ford Expedition
alittle. its in rear of motor near firewall
The 5.4 liter V8 engine , available in the 1998 Ford Expedition has a Coil On Plug ( C.O.P. ) ignition system
On a 1998 Ford Expedition , 5.4 firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford Expedition
Here is the number three coil pack located?
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
i have a 1998 ford expedition and i had simaliar to the same problem. does it feel like your loosing power? on my truck it was a misfire on my engine coil i would get that check out
It's a Ford
second coil pack back from the front on passenger side
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford Expedition
Your 1998 Ford Expedition 5.4 L - V8 engine has a COIL ON PLUG ignition system The engine cylinders / spark plugs / coils are numbered : FIREWALL 4 - 8 3 - 7 2 - 6 1 - 5 FRONT
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford Expedition