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What are the most common causes of low engine compression?

April 26, 2017causes common compression engine low

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What are the most common causes of low engine compression?

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Low compression can be caused by normal engine wear and decreased sealing between the piston rings and cylinder walls. This can be the result of scratches in the cylinder walls or sticking rings in the pistons which allow compression to move from the top of the cylinder down into the crankcase below the piston.