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Subaru engine knock can be caused by several factors, including incorrect ignition timing, low-quality fuel, or excessive carbon buildup in the combustion chamber. Additionally, a lean air-fuel mixture or issues with the engine's cooling system can contribute to knocking. Regular maintenance, including fuel quality and timely oil changes, is essential to minimize these issues. If knocking persists, it's advisable to have the engine checked by a professional to prevent potential damage.

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1w ago

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