GMC Yukon Cap & Rotor Kit

The ignition system of your vehicle is the one responsible for creating a spark that will ignite the fuel and air mixture at exactly the right time. The nerve center of the ignition system is the distributor. This is the device that does the job of triggering the ignition coil to produce a spark at the right time and to direct that spark to the proper cylinder. To achieve consistent and efficient high voltage distribution, your vehicle must be equipped with the GMC Yukon cap and rotor kit. This is the set of distributor components designed to route the high voltage in the correct firing order to the specific spark plugs.

The GMC Yukon cap and rotor kit is composed of a rotating arm or rotor that sits inside the distributor cap. During the ignition process, the metal part of the rotor makes contact to the central high voltage cable from the coil. This metal part passes close to, but does not touch the output contacts. This output contact is connected by high tension cables to the spark plug located at its corresponding cylinder. As the rotor rotates inside the distributor, the voltage is allowed to jump across the small gaps between the rotor and the contacts, and this is triggered due to the high voltage generated by the ignition coil. This way, the current is distributed from the ignition to the spark plug, allowing it to produce a spark that will ignite the fuel/air mixture so that combustion will happen.

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