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    Spark Plug

    Spark Plug Operation:

    An ignition component threaded into the cylinder head that contains two electrodes extending into the cylinder that form a gap across which high-voltage electricity arcs to ignite the compressed air-fuel mixture.

    How To Instructions:

    Inspect - Check for obvious problems.
    Service - Do the jobs that fix your car.
    Replace - Out with the old, in with the new.
    Conditions - Read what might be wrong.

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