I have a 91 2.8 and I got a small leak and cant figure where its from. I know its not the oil pan or valve covers because they are both clean, actually almost the whole engine is clean all the oil is on the trans. Its coming from the back of the motor. The guy I bought it from said its a plug in the back that might be leaking. Is there even a plug in the back of the motor? Dosnt leak a whole lot but anyone else run into this problem with the 2.8? Also what did you do to fix it?