I have a couple holes in the front area of the engine pan tray also. If yours are blocked you might try putting a piece of stiff wire - like a coat hanger wire in a drill and try reaming the holes out with this wire. between the engine compartment and the bilge there must be some passage since Ii have an bilge pump mounted on the back wal of th engine compartment and a hose that runs under the floor to the bilge area.
