3vz engine and If I hold a flashight and look up and behind the front passenger side wheel well i see what looks like aa aluminum housing connected to a darker colored housing and it's dripping oil from in between that flange. Is this the cylinder head gasket that is possibly leaking and what would this entail in making the repair. This engine only has 38k on it and sounds like i'm in for an overhaul to get this thing repaired. Any hints or suggestions would be of tremendous help.