First off: That connection to that box is standard for 2.5 Jeeps.
Second: By that pattern, it would indicate a 'serious' valve cover leak.
Third: That kind of leak means that you're engine is operating 'higher' than normal compression.
Typical advice: Change the oil to correct levels (10-30 Mobil synthetic). A Good Oil filter (Wix). Learn to do this yourself.
Come back hear and ask questions afterward.