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Home >> Jeep >> 2008 >> Commander Base, 3.7 K, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (4.7L Engine (Service Information)) >> Cylinder Head-Right >> Diagnosis And Testing >> Cylinder Head Gasket >> Cylinder-To-Cylinder Leakage Test

Cylinder-To-Cylinder Leakage Test

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To determine if an engine cylinder head gasket is leaking between adjacent cylinders, follow the procedures in Cylinder Compression Pressure Test. See CYLINDER COMPRESSION PRESSURE . An engine cylinder head gasket leaking between adjacent cylinders will result in approximately a 50-70% reduction in compression pressure.