( .052 to .056 inch ) for the 4.0 liter EFI and SOHC , V6 engines and also the
5.0 liter V8 engine ( confirm with the Vehicle Emissions Control Information /
VECI decal in the engine compartment ) located just in front of the radiator
at the top of the radiator
The spark plug gap for a 1998 Ford Explorer (V6 and V8 engines) is .054"
The spark plug gap for the 5.0 L - V8 engine - in a 1999 Ford Explorer is ( .052 - .056 inch )
THE GAP SHOULD BE SET AT .054".
.054 inch
.054 inch
the specified gap for a 99 for explorer is (.054). If you set it a little closer the spark plug will last longer. exp.(.045).
The spark plug gap is ( .054 inch )
.054 inch
.054 inch
.054 inch
52to56
The spark plug gap for a 1994 Ford Explorer with the 4.0 L OHV motor is .052 to .056 range - Chilton repair manual shows .054