Checking, replacing and maintaining your spark plugs is actually one of the easier and most affordable car-maintenance jobs you can do in the comfort of your own driveway — that is, if you don’t screw ...

When most drivers turn the key or press a button to start their vehicle, they’re probably not mentally going through everything that needs to happen in order for their engine to start. And while the ...

You'll know when a spark plug breaks. The question is, do you know how to safely replace a broken spark plug and which tools ...

You can remove a seized spark plug by applying penetrating oil, allowing the oil to sit, and then using a ratchet and socket ...

In this video, I show you how to test spark plugs and coils on any car, even if the spark plugs are recessed or hard to reach. Whether you're troubleshooting engine misfires, poor performance, or bad ...

Q: My 1998 Chevy Cavalier won’t start. It ran fine a few days ago and then stalled out. It won’t start, although it cranks properly and all the gauges work. My neighbor has a code reader and checked ...

Spark plug indexing gives each spark a clearer path to ignite the air-fuel mixture, which can help tuners squeeze out a few ...

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