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Home >> Chevrolet >> 2004 >> Impala V6-3.8L SC VIN 1 >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Compression Check >> Specifications

Compression Check: Specifications

No cylinder reading should be less than 689 kPa (100 psi)

The lowest reading should not be less than 70 percent of the highest reading.

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