Cylinder-To-Cylinder Leakage Test
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
To determine if an engine cylinder head gasket is leaking between adjacent cylinders, follow the procedures in DIAGNOSIS AND TESTING - CYLINDER COMPRESSION PRESSURE . An engine cylinder head gasket leaking between adjacent cylinders will result in approximately a 50 - 70% reduction in compression pressure.