.044 inch
.054 inch
Only on the 4.2 liter V6 engine , the 4.6 liter and 5.4 liter are Coil On Plug ( C.O.P. ) ignition
on top of the spark plugs in the intake manifold.
.054 inch ( according to motorcraft.com )
According to the 2001 Ford F-150 Owner Guide : For the 4.2 liter V6 engine : ( the spark plugs are gapped at .052 to .056 inch ) * confirm with the Vehicle Emissions Control Information ( VECI ) decal in the front of your engine compartment
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
0.044 44 thousands should be on emissions sticker under hood or on rad cover
1 - 3 - 7 - 2 - 6 - 5 - 4 - 8
setting timing on a f150 4.9 6cyl
According to one of the Ford websites : For a 1988 Ford F-150 ( 4.9 litre inline six cylinder / 5.0 litre V8 / 5.8 litre V8 ) The spark plug gap is ( .044 inch )
sparkplug placement for 97 f150 4.6
According to the 1999 Ford F-150 owners manual : For all the engine sizes ( 4.2 liter V6 , 4.6 liter and 5.4 liter V8 engines ) ( .052 to .056 inch spark plug gap ) ** confirm with what is on the VECI ( Vehicle Emissions Control Information ) sticker in the engine compartment **