Very severe oil leak with no knocking

[cdclark]

Please excuse me for not looking into this further so far, I am trying to get to a starting point on this oil leak. This happened within an hour of fixing the last truck my father in law tore up after getting off this morning after a 12 hour shift...
The truck is a '02 F-250 SD w/ Superchip on Hi Perf setting (37" tires)... I'm not really familiar with the Powerstroke as this is my first Ford and I married into it. I have worked on 4-71 Detroits for about 10 years but in a totally different application than a truck.

The truck was driving down the interstate at at least 70 MPH, when it cut off and father in law found an oil leak. It would not restart. He added more oil, it started then quit and would not restart. It does not knock at all. It will turn over, but every other compression stroke it sounds like it's backfiring through the intake. There is no fuel smell in the oil and I haven't located the leak yet...

My first guess is a busted ring, does this sound about right?

Thank you for your time and input.

Louise Clark

[mschn99]

start looking around the HPOP...its proably related to that... more than likely the o ring at the quick connect fitting...

[cdclark]

I hope so, would that also cause the starting problem as well?

[mschn99]

Originally Posted by cdclark

I hope so, would that also cause the starting problem as well?

yes...low oil level will cause starting problems....after its fixed it could take a little bit of cranking to start because of it as well....

[cdclark]

The oil has been refilled and now it will not start (sorry I didn't mention that in the original post)
I will take a look at the HPOP first thing in the morning when I get off.
I guess I just suspected the rings since there was no fuel smell in the oil and it seems to have a compression problem, but not knowing much about the powerstroke, I really wasn't sure.

Thank you so much for your replies, I really appreciate it!

If and when I fix this problem, should I consider taking the chip out of the truck? My father in law has been driving it (he's driven everything he owns into the ground and won't fix them) and he has a bit of a heavy foot.

[cdclark]

UPDATE ***
Rescind the statement about no knocking, I heard it today... horrible knocking...
Refilled the HPOP and started it up...
Found the problem
Looks like a broken rod.
There's a 2'' diameter hole in the block on the driver's side on the front bottom above the oil pan.
What gets me is the truck has less than 110K miles on it, with good regular maint.
Is this a common problem???