Glossary / Engine

ignition coils

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Ignition coils help start the engine by sending a strong electric spark to the fuel. If they are not working right, the engine can misfire or run poorly.

Technical Definition

Ignition coils are electrical components that convert the battery's voltage into the high voltage needed to ignite the air-fuel mixture in the engine's cylinders. A faulty ignition coil can lead to engine misfires.

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