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2011
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RAM 1500 Truck 4WD V8-4.7L
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Tune-up and Engine Performance Checks
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Compression Check
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Specifications
Compression Check: Specifications
COMPRESSION CHECK
Compression should not be less than 689 kPa (100 psi) and not vary more than 25 percent from cylinder to cylinder.