Check the Vehicle Emissions Control Information ( VECI ) decal located in the
front of your engine compartment . ( it will show the type of spark plugs to use
and the spark plug gap )
The spark plug gap for the 1979 Ford F250 is 0.044. This gap remains the same for the 1978 and the 1980 Ford as well.
The gap is .054" for a 1999 Ford F-250.
.044 inch , according to motorcraft.com
The spark plug gap for the 5.0 L - V8 engine - in a 1999 Ford Explorer is ( .052 - .056 inch )
The spark plug gap for a 1979 Ford F-250 with a 400 engine is between 0.42 and 0.46. This range is included in the factory settings.
The gap is .054" for a 1999 Ford F-250.
.044 inch ( according to motorcraft . com )
( .044 inch ) according to motorcraft.com
( .035 inch ) is the spark plug gap
0.044 for both 4.9L V6 and 5.9L V8. According to www.motorcraft.com
2001 Ford Truck F250 Super Duty P/U 2WD 5.4L EFI 8cylThe Spark Plug Gap.054 (In thousandths of an inch)
.042 -.046 All you have to do is look at the emissions sticker under the hood.