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Home >> Chevrolet >> 2004 >> Optra (CANADA) L4-2.0L >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Compression Check >> Specifications
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Compression Check: Specifications





The lowest reading should not be less than 70 percent of the highest reading. The compression gauge reading should not be less than 689 kPa (100 psi) for any of the cylinders.
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