Hello everybody, I've spent more hours then I can count reading all the great information on your forum. The cab and chassis on this truck rock, but I'm a little worried about the reliability of the engine. I've always been a Cummin's owner, and this truck will be getting a 12-valve in the future, but I would like at least another 100k.
I have a 2005 F-250 6.0 with 116k miles. It was owned by an older couple down in Texas, very clean and babied. I bought it from them at 101k. The EGR cooler was starting to leak & they wanted to have a truck with a warranty.
I hauled the truck up here to Cali for repairs, here are the things I have done so far:
*Pulled the EGR cooler and spun up a few plugs to block the ports.
*Cut the "scoop" out of the up pipe.
*I routed the coolant coming out of the oil cooler back into the cooling system with a silicone hose and a thick fiberglass wrap to protect it from heat.
*Removed & plugged the EGR valve.
*Cleaned intake manifold and intake runners on heads. (everything was about 50% clogged with soot & grime from EGR valve)
*Removed catalytic converter.
*Inspected and protected the wiring harness in areas it needed it.
*Cleaned rust & soot from VGT. Coated with anti-seize.
There are few things I have been thinking about to make this motor more reliable. That's where my questions come in:
*Can I pull the head bolts one by one and replace with studs?
*Since this is preventive, is it necessary to replace the gaskets too?
*Installing a regulated return fuel system seems like a good idea to me. Is it worth it?
*Anyone with an external oil cooler? The stock setup looks poorly engineered.
Thank you all in advance for your reply's!!