you dont say what motor, but look on your intake manifold and it will tell you. Fords are numbered 1,2,3,4, on one side 5,6,7,8, on the other a straight 6 is number one up front
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford F-150 ( V8 ) ------------------------------------------------------------------------ firewall 3 - 6 2 - 5 1 - 4 front of Ford F-150 ( V6 )
According to one of Ford's websites : For a 1984 Ford F-150 , with the 5.0 liter / 302 cubic inch V8 engine : ( the spark plug gap is .044 inch )
There is one on the top of each spark plug
its the one closest to passenger side
Driver's side front
According to one of Fords websites : For a 1989 Ford F-150 , 5.0 liter / 302 cubic inch V8 engine : The spark plugs are gapped at ( .054 inch )
According to one of Fords websites : The 360 cubic inch / 5.9 liter , V8 engine in a 1975 Ford F-150 has a spark plug gap of : ( .044 inch )
According to one of Fords websites : The 5.8 liter / 351 cubic inch V8 engine in a 1995 Ford F-150 has the spark plugs gapped at ( .044 inch )
.044 inch ( according to motorcraft.com , one of Fords websites )
I was looking at one of the Ford websites and it shows : For a 1987 Ford F-150 , 4.9 liter / 300 cubic inch inline six cylinder engine : ( the spark plugs are gapped at .044 inch )
Number 3 is passanfer side 3rd one back, number 4 is first one on the drivers side
Driver's side front