Buy Toyota plugs.
Please do not use anything but Nippondenso or NGK; anything else will perform poorly, and you may have driveability issues.
Set the gap to .032"
We hope this helps you out.
SOURCE: Spark plug gap on a 1992 Gmc Sonoma 4.3L V6 FI
Usually somewhere on the engine or in the engine compartment, there is a sticker with the engine specifications. The spark plug gap should be included. If not .032 or an inch should be close.
Good luck
SOURCE: spark plug gap spec. for 1997 ford ranger/4.0 liter
for the most part it is under the hood of your car where the sticker say engine size try this website to see if they have you car listed its www.autozone.com if not call your local part store and tell them its a 4.0 liter and you need the gap on the spark plugs
If you're replacing the spark plugs in your car
engine, you'll need to set the gap before reseating the
spark plug. The gap is the distance electricity arcs between the ground
electrode and center electrode. The gap must be set correctly to ensure
maximum performance. Here's how to set the gap of a spark plug.
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