Spark Plug Wire in the Mercury Grand Marquis automobiles are a significant factor of the ignition procedure through conducting an electrical current from the ignition coil to the spark plug. Technically referred to as high tension leads or HT leads, these cables therefore contain insulation characteristics which are heat resistant with a view of avoiding arcing as well as being manufactured to last long. The spark plug wires are of the correct length while fitting them they are fixed to the engines' and the vehicle's terminals are made of metals. Modern technologies are incorporated to cut down sitting and radio frequency interference while high-quality wires demand brass terminals that are anti-corrosive. Many older engines do feature a coil wire but in the contemporary engines, coil packs or even individual ignition coils are situated directly on the spark plugs voiding the standard spark plug wires. These wires if maintained properly and placed correctly enhances the performance of the engine as well as its durability.
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