On the inline six cylinder engine , spark plug # 6 is the rear spark plug On the V6 engine , spark plug # 6 is the rear plug on the drivers side of the engine On the V8 engines , spark plug # 6 is the 2nd plug from the front on the drivers side of the engine
6! hints... V6
The recommended spark plug gap is .044"
I can answer part of your question : The towers on the coil pack are numbered : coil---3---4 pack--2---6 plug---1---5 ========================================================== The engine cylinder / spark plug locations are numbered : firewall 3 - 6 2 - 5 1 - 4 front
The engine cylinder locations are numbered : firewall 3 - 6 2 - 5 1 - 4 front of Ford Explorer ( V6 ) ------------------------------------------------------------------------------------ The coil pack towers are numbered : coil----3 - 4 pack---2 - 6 plug----1 - 5 -------------------------------------------------------------------------------------- Also , the spark plug firing order is 1 - 4 - 2 - 5 - 3 - 6
The spark plug torque spec range is between 6 and 10 ft/lbs.
On a 1999 Ford F-150 / Ford Expedition etcetera : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
The engine cylinder locations are numbered : firewall 3 - 6 2 - 5 1 - 4 front of Ford Explorer -------------------------------------------------------------------------------------------------- The coil pack towers are numbered : coil----3 - 4 pack---2 - 6 plug----1 - 5 ------------------------------------------------------------------------------------------------- The spark plug firing order is ( 1 - 4 - 2 - 5 - 3 - 6 )
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.
( .044 inch ) spark plug gap for your 1984 ( 300 cubic inch ) 4.9 L straight 6 cylinder Ford engine
The spark plug firing order for the Ford 4.0 L OHV and the Ford 4.0 L SOHC engines is the same ( 1-4-2-5-3-6 )
.32 to .36