The Essentials of Replacing and Gapping Spark Plugs
Replacing spark plugs is one of the primary tasks during a tune-up, and proper maintenance can keep your vehicle's electrical system running smoothly and efficiently. With the right equipment, you can change, clean, and gap spark plugs yourself.
To buy the proper spark plugs for your vehicle, you must know its specifications. Your owner’s manual may have specifications for buying and gapping the spark plugs on your vehicle. If you don’t have an [more…]
The first step in changing your spark plugs is to remove the old ones. To avoid turning this job into an all-weekend project, remove one spark plug at a time, inspect it, clean it, and — if it’s salvageable [more…]
When changing your spark plugs, you may have some difficulty loosening a spark plug for the first time. Grease, sludge, and other junk may have caused the plug to stick in place, especially if it’s been [more…]
When you're changing your vehicle's spark plugs, work on one spark plug at a time: Remove it, inspect it, clean it, and — if it’s salvageable — gap it. Then replace it before you move on to the next spark [more…]
The gap between the center and side electrodes of a spark plug must be an exact distance; otherwise, your plugs don’t fire efficiently. Adjusting the distance between the two electrodes is called [more…]
You can actually read your spark plugs for valuable clues about how your engine is operating. If your plugs indicate that something is seriously wrong with your engine, ask a professional for an opinion [more…]