Hey everyone just a little tid bit for you all, I was searching the forums for info on water in the oil, on my 2000 4x4, found alot of info but, what I didnt find was that no one said to check the freeze plugs under the valve cover. I had 3 that had pin holes in them. I did replace the headgasket but was not sure it was the cause until I cleaded up the head before I put it back on. This truck has 310000 miles on it and runs like a champ, all stock except a built tranny and billet TQ converter. Thanks again for all the help.

 

what caused the pinholes?

 

I think it was just time Cummins puts steel freeze plugs in and they eroded from the water side out. Just keep up your cooling system mantinance.