The function of a spark plug is to produce the sparks necessary to ignite the gas and air in the engine, initiating a combustion reaction that provides energy to run the automobile. Spark plugs are designed to fit perfec... More »

A spark plug is a device that produces an electrical spark, which ignites the mixture of fuel and air in the engine's combustion chambers. A spark plug initiates the combustion in the internal combustion engine. More »

The Bosch automotive catalog carries a full listing of all available Bosch spark plugs. This catalog is available online and has a comprehensive search function based on categories including vehicle type, drive type and ... More »

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An automobile tune-up consists of a check of a vehicle's fuel filter, air filter, spark plugs, spark plug wires and battery. The PCV valve, belts, lights and tires are also checked. An oil change is performed and the car... More »

Parts and tools needed for a car's tune-up include spark plugs, a fuel filter, a socket wrench, a spark plug socket, a spark plug gapping tool, the service manual, screwdrivers, crescent wrenches, a distributor cap, spar... More »

A spark plug is a device that produces an electrical spark, which ignites the mixture of fuel and air in the engine's combustion chambers. A spark plug initiates the combustion in the internal combustion engine. More »

In order to test the spark, pull the spark plug from the engine, and then start the car. There should be a bright blue spark between the electrodes every time the cylinder fires, provided that there is enough voltage rea... More »