I have a 2005 f-350 with a 6.0l and it appears to have a high pressure oil leak. I say that because it starts when cold but after it warms up it wont start unless starting fluid is used.
I used a Snapon scanner and wile cranking desired pressure was 659 but actual was 28. My question is what is the most common area that has the leaks? I would just like to have a direction to go in. The truck has 127000 miles on it.

 

Branch tube and branch tube connector fitting would be where I would start check IPR see if screen ripped out

 

The 05 are known to leak on the stand pipes. (The pipe coming up into the oil rail that sits on top of the injectors) They have since updated them and the old version is no longer available. Dumby plugs could be the cause as well. IPR was at 88.4% while cranking?

 

That is correct they updated stand pipes in 06 but some 06s didn't get it but most did

 

Stand pipes and dummy plugs are known to leak. I had mine replaced, then my stc fitting blew off, cracked the housing. Thank god for high temp silicone . I had all updated stuff put in after that!

 

Stand pipes and dummy plugs are known to leak. I had mine replaced, then my stc fitting blew off, cracked the housing. Thank god for high temp silicone . I had all updated stuff put in after that!