In this manual: Kia Sorento XM 2011-2023 Repair Manual
~1min read
A spark plug is a device that delivers electrical current from the ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed air-fuel mixture in it by means of an electric spark, while containing the combustion pressure inside the engine. The spark plug has a threaded metal shell and is electrically insulated from the center electrode by a porcelain insulator.
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