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In a Subaru engine, the coil packs are part of the ignition system. Their job is to create the high voltage needed for each spark plug to ignite the air-and-fuel mixture inside the cylinder.
Read MoreWhich Subaru engine do I have? We know this seems like a silly question but a lot of engines are mislabeled and people sometimes purchase the incorrect engine for their project. We thought we would create a guide to distinguish...
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