What destroys OEM in tank fuel pumps is running down to empty during hot summer months, Best practice is to Keep DSL fuel tank full when convenient, and in extend travel during summer months temps above 85F try not to drop below 1/4 tank, that hot fuel returned from engine/Injectors Pump dumps...
You need to find someone with WItech that knows the work around and procedure for this, how far from MN ? I have tried to guide techs with the work around, All that happens is I spend hrs on the phone and I longer have the time anymore.
It was fiat That Brought the 3.0 VM Motori to Americas Soil, Ram was NOT in favor of the engine GM/VM designed the 3.0 VM for Euro Caddy's that never made it into production 2005-07. Plus, all ??? Americans that believe that Euro's technology is superior, ( Some products, engine, designed parts...
151K miles, it may just be Combustion knock due to injectors, no biggy as long as the OAs are good, You need to establish OA trends just one is not enough IMO.
They are problematic in some/most cases; it will take someone that know the work arounds... Very rare to find someone in dealerships capable of reversing all of this, details will need to be shared $30K WOW...
The bypass was engaged you pump 5 gallons of contaminated fuel in tank... Your entire fuel system will likely to be replaced. Remove FCA and check if it looks like this.
If you take it to a dealer, you had better be specific and clear, because, I doubt whoever you talk to knows the ins and outs of every independent Dealership policy on repairs.