Most likely there is a write-up I went 3 pages back couldn't find one.
I just got a 07 3500 6.0 fleet side
With a ton a miles. 287,
My problem is the lifter will tap,loose power of course then go away and back to normal.
I've done a little research and seen about this o-ring issue.
But I rather change the oil pump at the same time.
Has anyone had these issues let me know... Thanks.

 

What does your oil pressure do when this happens? What is your idle oil pressure and WO oil pressure?

 

Just now I was in the truck at idle and it dropped low.
I gave a little gas and it built pressure again... I know the pump is bad and that o-ring too any how to write ups?

 

And wo is around 42-44 at idle its under 40.