Sorry to hear about that Dave but honestly at 175k it was on borrowed time I'm afraid.

Misfire codes could be plugs as well have you done them recently? I assume you did the fuel filter itself as well or is it oroginslv

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards