GMC Repair: 2002 GMC Duramax 6.6l, small drain, drain hole

Question
Hi,
I noticed alot of fuel leaking from the small drain hole between transmission and engine.
I drained the engine oil and found it was full of diesel fuel.  Also noticed that engine pressure was low but no warning lights.  Is it the fuel pump or injectors dumping the fuel?  Has this damaged the engine?  
Please help I am unsure what to do next.
Thank you in advance.
Brent

Answer
Hi
It is the injectors.
You MAY still have warranty there is a special policy for the injectors to lengthen the warranty.
If you are out, look for it to be a $2500-3500 job.
No damage PROBABALLY done, just dont drive it without putting fresh oil in it.
I Hope this helps
Pawl