Engine Mechanical - 3.6L - Diagnostic Information and Procedures: Component Locations GMC Acadia I

Special Tools

1. J 35667-A: Cylinder Head Leakdown Tester
2. J 39313: Spark Plug Port Adapter For equivalent regional tools, refer to «Special Tools»(ref-365328-S22680543812010070600000) .

Note. A leakage test may be performed in order to measure cylinder/combustion chamber leakage. High cylinder leakage may indicate one or more of the following: Worn or burnt valves Broken valve springs Stuck valve lifters Incorrect valve lash/adjustment Damaged piston Worn piston rings Worn or scored cylinder bore Damaged cylinder head gasket Cracked or damaged cylinder head Cracked or damaged engine block

1. EN-47971: Oil Pressure Gage Adapter
2. J 21867: Pressure Gage

For equivalent regional tools, refer to Special Tools .