On a 2000 Ford Ranger , 4.0 liter EFI , V6 engine :
The firing order is ( 1 - 4 - 2 - 5 - 3 - 6 )
The engine cylinder locations are numbered :
firewall
3 - 6
2 - 5
1 - 4
front of vehicle
The towers on the coil pack are numbered :
coil-----3 - 4
pack----2 - 6
plug-----1 - 5
Wiring diagram of what component?
The proper gap for the 2000 2.5L Ford Ranger is .044"
The spark plug wiring diagram for a 2000 F-150 can be found in its service manual. The service manual is available from Ford.
.042 to .046 inch (according to the 2000 Ford Ranger owners manual ) spark plug gap for the 3.0 L - V6 engine
( .054 inch ) spark plug gap for the 4.0 L - OHV - V6 engine in a 2000 Ford Ranger ( according to motorcraft.com , one of Fords websites )
.042-.046 In.
Code P0304 on 2000 Ford Ranger is: Misfire at cylinder 4 detected. May be cause by a bad spark plug.
The 2000 Ford Ranger firing order is 1-3-4-2. The number one cylinder is the one closest to the front.
( .054 inch ) on your 4.0 L - OHV - V6 engine in a 2000 Ford Ranger - according to motorcraft . com
Check 2carpros.com/forum/. There is some interesting help there.
The spark plugs should be gapped between .042-.046".