That is the 2.5 L OHC 4 cylinder engine with Fords twin plug ignition system on a 1999 Ranger ( from 1998 to 2001 on the 2.5 L and from 1989 to 1997 on the 2.3 L ) One spark plug fires on the power stroke and one spark plug fires on the exhaust stroke to reduce emissions
Pull them out and replace them one at a time.
That's Fords twin plug ignition system , so your Ford Ranger 4 cylinder has ( 8 ) spark plugs and spark plug wires
because you did it wrong
In a 1997 Ford Ranger : The 2.3 liter four cylinder with Fords twin plug ignition system has ( 2 coil packs ) and ( 8 ) spark plug wires for the eight sparkplugs The 3.0 liter and the 4.0 liter V6 engines have ( 1 coil pack ) and ( 6 ) spark plug wires for the six spark plugs
P0300 means random misfire detected which probably has to do with the spark plugs or the plug wires
The spark plug number that is in my 2003 Ford Ranger XLT is: AGSF34FP - Motorcraft.
distributorless ignition system - the coil pack(s) with the towers where your spark plug wires are connected - the other ends of the spark plug wires are connected to the spark plugs ( on the 2.3 L and 4.0 L engines in 1993 )
Here you go, click the link.
The spark plug gap for a 1983 Ford Ranger 2.8L is .044"
It's the box between the engine and left side of the engine compartment where the spark plug wires attach to
change spark plugs, spark plug wires, distributer cap, change oil, belt, grease fittings, fuel filter. -all cheap and easy to do.
spark plug gap on 1990 ford ranger 4.0?