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Jeep
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2004
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Grand Cherokee 4WD V8-4.7L VIN J
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Compression Check
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Specifications
Compression Check: Specifications
CYLINDER COMPRESSION PRESSURE
Compression Pressure
140 - 180 psi
Maximum Allowable Variance Between Cylinders
25 %