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And yet,,dah, dah, dummy,,,, The Mystery continues...(n) I would try to figure out where that coolant is going. Borrow a coolant...
So you are saying it starts and sounds fine? You get a code for what kind of misfire? But don't notice any problems,, other than that...
Isn't there a EGR cooler in a Gen4? That EHR is for quick warm ups of the coolant, no? And not related to the EGR system, no? Yeah, so...
Not good. But was there the 'Death Rattle' when you first started the engine, like reported with Gen3's? If all that coolant came from...