I have an engine oil leak and can't find the location of the leak.
I have replaced the valve cover, timing chain cover and intake manifold gasket. I believe it to be some kind of pressure leak because it occurs after the car has been driven until the engine reaches normal operating temperature. The oil leak sprays oil on the back side of the engine. I have been unable to see the actual source of the leak because it is diffult to see with a flashlight and I don't have a rack to put it on.
When you replaced the valve cover did you put a bead of silicone across the two T joints before putting the valve cover on?If not theres one leak and they can leak pretty bad. If your leak isnt there you can go to the auto parts store and buy some engine oil leak dye put it in the engine oil run the engine then take a dye light and follow it back to its source. Clean up the old oil first. Using the dye has always worked for me when I could locate the leak. Let me know what you find.