Spark plug gap spec. for 1997 ford ranger/4.0 liter

It depends on the spark plugs that have been used. Some are pre gapped, some have three preset side electrodes around the edge. Gapping spark plugs is not as critical as the old days due to modern CDI ignition systems which give a much larger spark and huge improvements in spark plug technology.

https://www.google.com/search?q=1993+Ford+Ranger+4.0+spark+plugs

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https://www.ford-trucks.com/forums/352238-timing-a-1997-2-3-liter.html

oem spark plugs, .052--.056, I found this in your owners manual.

Different spark plug manufacturers may have different gap spec.

0.044", IT16 Denso Iridium Spark Plugs are the best for your truck... they last 60K miles on average, save gas and add power.
Use thread antisieze lube on the first 2 to 3 three threads of the spark plug, it makes it easier to remove them in 5 or 6 years time. Check your plug wires one at a time too for signs of wear and cracking at the boots. A peak inside the distributor cap is also a good practice... any black carbon deposits at the electrodes is a sign it needs replacing along with the rotor. Your truck has a 2.3 liter, 4 cylinder engine.

Try .054 for standard plugs.

Hi
original spark plugs ( MOTORCRAFT AGPS22PP1 1.0mm gap
you can use ( CHAMPION RC8PCY 0.8mm gap
or ( NGK PFR6B-II 1.1mm gap
Note that the specs given are for euro ford 2.3 engine code E5FA

Good luck

Hi!1
The spark plug gap is 044 (In thousandths of an inch) Caution! Gap is not adjustable on certain plug brands. The 4 cyl. 2.3 L engine uses 2 spark plugs per cylinder.
A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

Did you replace the wires? if not you may have broken a couple of wires. Not sure what fire wire is unless you mean the spark plug wires. Also did it do this before you replaced the plugs? need to know.

On most vehicles the spark gap is listed on one of the stickers under the hood.

1988 Ford Ranger 2WD
2.0 liter SOHC L4


1988 Ford Ranger 2WD
2.3 liter SOHC L4


1988 Ford Ranger 2WD
2.9 liter V-6


The firing order is the same in the 4wd specs also.