To begin with a lot of things could have happened.
1. Not enough coolant in the system, for whatever reason it wasn't there.
2. Insufficent air flow thru heat echange components. [A/C cooler, Transmission cooler, air cooler, radiator etc. fins blocked with whatever]
3. Clutch fan failure [no forced air]
4. Thermostat failure
5. Excessively heated product in other items being cooled. [Tranny fluid too hot, a/c gasses too hot etc.]
These are the most common ,there are a few more mostly related to the laws of thermal dynamics.
Sorry I just ain't up to a disertation on the Laws of Physics today.
Thanks, I kinda was looking for common failure issues specific to the 6.0...
Sounds like the egr cooler and possibly headgaskets blew!
Those are the most common problems to have when towing with the 6.0, I went through the same thing when my 05 had 35k mi. on it.
But $14,000 is way too high, unless thay are completely changing your motor!
OK thanks. So maybe the EGR cooler blew then maybe blew a head gasket or both head gaskets?? I think that was what they were quoting me...new motor... Just got off the phone with the service manager guy at the dealership and he says it needs a new engine because the EGR cooler melted apparently and that I was lucky I didn't hydro-lock the engine. ? Said they can fix the damage for $9,000 or replace the engine, which he is recommending... I can't afford that.... I can buy a good used dodge with the cummins for that... Luckily I guess I don't owe money on the truck...
14k did they tell you what was wrong and what ther were fixing?
Blown EGR cooler apparently. Get this, I think this exact same thing even happened before back at 93,000 miles!!! My wife was driving it at the time, I was working off-shore so I wasn't around for that... I guess they replaced both cylinder heads, oil cooler and the EGR cooler, but it was done under warranty... If I fix this thing, the EGR THING IS NOT GOING BACK ON THERE, if there is a way to keep it off, I will be doing so.