I have had the same problem with my 2000 explorer time after time my advice is to get rid of it as fast as possible while it is running good , sell it to a car lot.
The proper gap for the 2000 2.5L Ford Ranger is .044"
The 2.5 liter 4 cylinder , that has Fords twin plug ignition system , takes ( 8 ) spark plugs
Code P0304 on 2000 Ford Ranger is: Misfire at cylinder 4 detected. May be cause by a bad spark plug.
In a 2000 Ford Ranger : ( the 2.5 liter four cylinder engine , which was the only four cylinder engine offered from the factory for a 2000 Ford Ranger , not like the 2001 model when they started with the 2.3 liter DOHC later that model year )
passenger side of engine , front cylinder
Since there's 1 spark plug per cylinder, that would be a total of 6 on a Windstar - no 4 or 8 cylinder engines were ever offered.See "Related Questions" below for more
i have a 1988 ford ranger xlt 4 cylinder and my spark size is 42-46 hope this will help
Ford uses Motorcraft Spark Plugs
There are ( 6 spark plugs ) for the 3.8 liter V6 engine in a 2000 Ford Mustang
On a Ford Taurus , V6 engine : firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
WHAT IS FIRING ORDER ON 2000 FORD 4.6. WITCH CYLINDER IS NO 7?
where are the spark plugs of a 2000 crown Victoria