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Home >> Jeep >> 2007 >> Wrangler Rubicon, Standard >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 3.8L Engine (Service Information) >> Cylinder Head >> Diagnosis And Testing >> Cylinder Head Gasket >> Cylinder-To-Cylinder Leakage Test

Cylinder-To-Cylinder Leakage Test

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 TEST . An engine cylinder head gasket leaking between adjacent cylinders will result in approximately a 50-70% reduction in compression pressure.