saw possible leak between intake manifold and valve cover on the right side of the engine. it appears the intake manifold gasket covered a machined hole the size of a dime. gasket crumbled while probing to see where the possible leak was coming from<br />Question: What is this hole? Can it be plugged? or must i replace the intake manifold gasket?<br />Note: the gasket appeared to form a plate over this hole.
