The spark plugs should be gapped between .042-.046".
The proper gap for the 2000 2.5L Ford Ranger is .044"
The oil drain plug on the 2000 Ford Ranger is on the rear of the oil pan. It is located under the vehicle near the center.
.042 to .046 inch (according to the 2000 Ford Ranger owners manual ) spark plug gap for the 3.0 L - V6 engine
underneath the engine
Code P0304 on 2000 Ford Ranger is: Misfire at cylinder 4 detected. May be cause by a bad spark plug.
( .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.
( .054 inch ) on your 4.0 L - OHV - V6 engine in a 2000 Ford Ranger - according to motorcraft . com
On a 2000 Ford Ranger : On a manual transmission , underneath the vehicle , on the transmission will be a fill plug . With the vehicle level the fill plug is cleaned and removed to check the fluid level ( the fluid level should be at the bottom of the fill plug hole )
lorftion drain plags 3.0 l Ford
On the oil pan, bottom of engine.
The spark plug number that is in my 2003 Ford Ranger XLT is: AGSF34FP - Motorcraft.