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What can cause an Chevy colbat to lose compression?

Updated: 8/18/2019
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13y ago

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On one or all cylinders?

a single cylinder compression loss may be a stuck or bent valve, or even bad piston rings.

Engine wide would have to be some kind of massive valve train failure.

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13y ago
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Q: What can cause an Chevy colbat to lose compression?
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