The 4.2 liter Ford V6 in the F-150 has a spark plug firing order : 1 - 4 - 2 - 5 - 3 - 6 ------------------------------------------------------------------------------------ The engine cylinders / spark plugs are numbered : FIREWALL 3 - 6 2 - 5 1 - 4 FRONT ------------------------------------------------------------------------------------------ The COIL PACK TOWERS are numbered : coil----3---4 pack---2---6 plug----1---5
Both the Owner Guide and fordparts.com show ( .034 inch ) spark plug gap for a 1998 Mercury Villager 3.0 liter V6 engine
How to remove a glow pug wiring harness from a 6.0
.045.
According to the 1998 Ford F-150 Owner Guide : For the 5.4 liter V8 engine the spark plug gap is : ( .052 to .056 inch ) * confirm with the Vehicle Emission Control Information ( VECI ) decal located in the front of your engine compartment
The wiring for the oxygen sensor PLUG is what I forgot to submit.
You can find a spark plug wiring diagram for a 1998 Jeep Cherokee in the vehicle owner's manual. You can also find the diagram at various auto stores.
Some auto parts retail websites have spark plug wiring diagrams. One of them, AutoZone, shows the spark plug wiring diagram for the 1993 Ford Tempo 3.0 liter 6-cylinder model.
50 thousandths
.040
in what order are the spark plug wires on the distributor cap on a 1998 dodge Dakota 6 cylinder
( .054 inch ) for the 4.0 liter OHV , 4.0 liter SOHC , and the 5.0 liter V8 engine
.050 inch