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Home >> Hummer >> 2009 >> H2 V8-6.2L >> Repair and Diagnosis >> Maintenance >> Tune-up and Engine Performance Checks >> Compression Check >> Specifications

Compression Check: Specifications

The minimum compression in any 1 cylinder should not be less than 70 percent of the highest cylinder.
No cylinder should read less than 690 kPa (100 psi).

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