On a 2002 Ford F-150 :
There should be an information decal in the front of your engine compartment
that shows the type of Motorcraft spark plug to use and the spark plug gap
( the Vehicle Emissions Control Information decal , VECI )
Which engine?
Only on the 4.2 liter V6 engine , the 4.6 liter and 5.4 liter are Coil On Plug ( C.O.P. ) ignition
drivers side of engine , 3rd spark plug / engine cylinder from front of engine The engine cylinders / spark plugs are numbered : passenger side , front to rear , 1 , 2 , 3 , 4 drivers side , front to rear , 5 , 6 , 7 , 8
for what size of engine ?
8
.052 - .054
That would depend on which engine size you have
You're kidding right? The OD is for freeway driving. It lowers your engine RPM and allows for better fuel mileage.
( .054 inch ) according to www.motorcraft.com
passenger side of engine , front cylinder
on top of the spark plugs in the intake manifold.
1 - 3 - 7 - 2 - 6 - 5 - 4 - 8 is the spark plug firing order on a Ford F150 4.6 L engine