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That is good news. I didn't catch this on my first read. That would definitely be a contributor to "death wobble". John

Yes. Anything to prevent oxidation from happening.

Got both turbos removed today and will be taking them in to get resealed while I figure out new drain lines. While I was in there I cleaned all the grounds and inspected the harness on the passenger side of the engine compartment. They all looked good except the one on the PCM had a little touch of green on the wire so I will most likely replace that one. I’m also unplugging and plugging all the connections as well. Would it be a good idea to smear some dielectric grease on the grounds? I did check a few on the other side before I ran out of steam. I off work this week so I will get out there again later.

Sadly if it's not leaking on the ground it leaking internally and being burnt as fuel. Vacuum pump would leak on the ground Front / rear crank seal would leak on theme ground Tappet cover would leak on the ground. Valve cover would leak on the ground. Valve seals yup it would be burnt as fuel and only be seen after the engine sat all night and Valve stems would be wet with engine oil. Piston rings yup could burn the oil as fuel too but blow by would be noticed typically. There is one case here from @jlwelding that had a cracked piston that past blow by test. Only proper way to test is a compression test. Lower compression would point that out.

REMEMBER do NOT remove all the paint from a ground location. With both of us here in Idaho salt off the highway will make the matel rust and fail for the ground. Make all bare metal is painted before reattach the ground. Really sucks that you find the wire just hanging from rusted chunk of metal.

I did find one loose ground wire that was covered in crud, cleaned and tightened to no avail. I need to pull my big turbo off to get it resealed and remove my inter cooler and piping to clean them out so I may as well start that and get a better look at the rest of the harness while I’m at it.

More good news, just got my Quad module back from testing and it’s toast. There’s $800 I don’t have. I can’t wait to see how the truck runs on stock tuning with all the other mods if I ever get this ecm issue sorted out. My S475 is being rebuilt and they at least verified it was due to the drain hose not flowing well enough. The S357 they said was fine and needed nothing. That’s still $500 for the rebuild and $200 for new drain lines plus whatever having the ecm rebuilt a second time will run me. 🫣. The last 10 trouble free years of operation are all catching up to me.