One thing my mechanic and I did to diagnose where the leak was coming from was to THOROUGHLY degrease the entire engine bay. Get a couple bottles of Purple Power and start spraying that thing down. Repeat the process like 3 or 4 times. Cover the entire engine bay with degreaser, hose it off (all when the motor is cold).99 F250 2WD 7.3L Has serious oil leak. Valley of engine filling and overflowing down back. Have replaced HPOP, New Fittings and Orings. The oil leak worsened this weekend and the truck died, 9qts low on oil! Refilled oil and it started after roughly 30 seconds of cranking. Drove to my shop and shut truck off. 10 Minutes later went to start truck to pull into shop, took about ten seconds of cranking to finally start then idled rough for about 20 seconds. Seems like the pressure is leaking off when I turn the truck off. Ive got some UV die and am going to see if I can locate the exact point of the leak. Im just really confused as to why this oil leak will not stop. Am I missing something?
Then once it's clean enough you could eat off it, run the truck with that UV dye, and you'll see only the freshest leaks.