How Do I Know Which Spark Plug Wire Goes Where. Spark plug wires cant add horsepower despite what some may claim but they can adversely affect your vehicles performance. Whether you do a complete tune-up or only change the spark plugs spark plug wires also known as ignition cables should always be checked first.
Gas-powered lawn mowers work with a spark plug that ignites the engine. Each point connects to one spark plug and each spark plug goes to one cylinder in your engine. A bad one looks likeThere are tons of different types of spark plugs iridium platinum standard pre-gapped 4 grounded etc but there still are some telltale visual signs that tell you of a bad spark plug or a poorly running cylinder.
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Testing spark plug wires and diagnosing bad spark plug wires. If the spark plug wires on a vehicle are not marked before they are removed you must know the firing order in order to know which spark plug wire goes to which cylinder. Thats why its important to select a good quality set of spark plug ignition wires to deliver juice to your spark plugs. 8 Signs the Spark Plugs or Spark Plug Wires Need Replacing.
