.054 inch - according to motorcraft.com ( one of Fords websites )
Trouble code P0305 means:Cylinder 5 misfire detected Try replacing the plug wires and double checking the spark plug gaps
It is 0.044 ======================================================= According to one of Fords websites : The spark plug gap for the 4.0 liter V6 engine in a 1992 Ford Aerostar is ( .054 inch ) * the .044 inch spark plug gap is for the 3.0
According to one of Fords websites : For a 1986 Ford Taurus : ( both the 2.5 liter four cylinder engine and the 3.0 liter six cylinder engine have the spark plugs gapped at .044 inch )
0.80
The 2007 Ford Focus owners manual shows , for both the 2.0 L and 2.3 L : ( .051 inch +/- .002 ) or in metric ( 1.3 mm +/- .05 )
1mm
All spark plug gaps are adjustable.
spark plug FR7DC2 set gap 0.9mm
.044
spark plugs are either not put in right or gaps not right.Also check your spark plug wires.
.054 inch , according to fordparts.com
The park plug gap for a 1999 Nissan Maxima is between 0.039 and 0.043 in. Even though most plugs come pre gapped it is always a good idea to double check gaps.