We may receive a commission on purchases made from links. When it comes to engine care 101, a spark plug replacement — also referred to as a tune-up — is an essential task.Spark plugs, as the ...

Mind the gap. Most new plugs come pre-gapped for your car's engine. If not, use a gap tool to carefully adjust the air gap or the space between the electrodes.

Replace the plug — carefully. If you need to replace plugs, how carefully you install them can make or break the job (and your cylinder head). Place the spark plug into the socket attached to the ...

The Challenger 392 owner was quoted over $1,500 for a spark plug change on his Hemi V8 engine, but a quick search shows the ...

The average labor cost ranges between $40 and $350. Factoring in parts and labor, the cheapest spark plug replacement costs between $100 and $250, and the highest is between $250 and $500. It is ideal ...

Along with swapping out the air filter and changing the oil, replacing the spark plugs is one of the few things left that require service on a modern gasoline engine. Some newer than the twenty ...

Your car's spark plugs aren't something you typically think about during regular maintenance, but they do need to be changed.

Replace one spark plug at a time. This will avoid confusion and prevent you from matching the wrong spark plug wire to the wrong spark plug. 6.

DETROIT -- Years ago, backyard mechanics could change their spark plugs easily for little cost, boosting gas mileage and meeting the manufacturer's scheduled maintenance requirements. But now, as ...

See how to replace your spark plugs here. By Autoblog Staff. Dec 21, 2016 2:00 PM EST. Spark plugs are the heart of your car’s ignition system.

We may receive a commission on purchases made from links. When it comes to engine care 101, a spark plug replacement — also referred to as a tune-up — is an essential task.Spark plugs, as the ...