I have a 98 expedition, and i had a bad coil, they are hard to get to i guess some of them are way in the back toward the dash. if your check engine light is on, it should say " cylinder # misfire, then look in your manuel and see how the cylinders are are placed in the truck. When one of mine needed to be replaced , symptoms were, ideling funny, spitting and sputering ect pretty cheep fix around $200.00 coil/labor together.
98 expedition
54 multiplied by 98 is 5,292.
distributor cap and rotor
Check your spark plug wires. They maybe bad.
Check the Blender door... Also check the temp knobs they make be broken.
Check the ignition coils. When they go bad the engine runs rough and you lose power.
79.4
The Least Common Multiple (LCM) for 54 45 98 89 is 1,177,470
52.92
5x135
I have a '98 with 2.2L and mine is distributorless. Instead, it has ignition coils.
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