Vibe FWD L4-2.4L (2009)
The following actions indicate that the piston rings are faulty:
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The cylinder compression is low on the first stroke.
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The cylinder compression increases on the following strokes but does not reach the compression standard.
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Faulty valves
The following actions indicate that the valves are faulty:
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The cylinder compression is low on the first stroke.
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The cylinder compression does not increase on the following strokes.
