How to Check the Ignition Coil on a Late Model Auto?

Answer Gasoline-powered automobiles rely on ignition coils to drive the spark plug to ignite the air-fuel mixture. Over the years, the principle has remained the same, but the design of these ignition coi... Read More »

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How to Check an Ignition Coil for Continuity?

Continuity refers to the electrical resistance that an electrical wire has. For ignition coils, this is the electrical resistance in the coil. The higher the resistance, the less conductivity it ha... Read More »

How to Check Ignition Coil Output?

The ignition coil amplifies the voltage coming from your vehicle battery to provide the spark necessary to ignite the fuel in your engine's combustion chambers. When an ignition coil fails, the vol... Read More »

How to Check a Motorcycle Ignition Coil?

The ignition coil on a motorcycle serves to step up the relatively low battery voltage to the high voltage needed to fire a spark plug. Coils are generally a sealed, water-tight component. As such... Read More »

How to Check the Spark on an Ignition Coil?

A car's ignition coil transforms the 12-volt current from the battery into a much higher voltage to spark the spark plugs and start the engine. Modern cars have more than one coil and these are oft... Read More »