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 a 1998 GMC Ignition Coil?

Testing the ignition coil on your 1998 GMC truck will tell you right away if the coil is faulty. Learning the procedure for testing the coil can save time and money. The coil on the GMC looks a lit... 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 »

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 »