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GMC Truck
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2004
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Sierra 2500 4WD V8-6.6L DSL Turbo VIN 2
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Engine
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Tune-up and Engine Performance Checks
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Compression Check
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Specifications
Compression Check: Specifications
GThe minimum compression in any one cylinder is
2069 kPa (300 psi)
. There should not be more than
345 kPa (50 psi)
difference between a suspect cylinder and the average compression of all 8 cylinders.