STANDARD PROCEDURE - Cylinder Head Oil Gallery Cup Plug Service: Notes
WARNING: This page is about a different variant/trim than selected.
NOTE:
Determine which cup plug is leaking before performing this procedure. If necessary, perform an engine oil leak dye test.
Each cylinder head on a 2.7L engine has 6 external oil gallery cup plugs. It is not necessary to remove the original cup plug to install a new cup plug. The cup plug bore is deep enough to allow for two plugs. If it becomes necessary to service an oil gallery cup plug, perform the Repair Procedure.
NOTE:
Inspect the cup plug bore in question for the presence of two cup plugs. If the cup plug flange is just inside (1-2 mm) the chamfered edge of the bore two cup plugs are already in place and the cylinder head cannot be repaired.