Yesterday my 6.7 2009 displayed the check engine light and would idle roughly and start loping and die if I step down on the accelerator pedal. When idling the engine temperature gauge climbed to above normal. HELP The local Dodge dealer came up with codes having to do with cleaning the turbo charger and DPF. I have 67K on it and the only deferred maintenance is the fuel filter is 1000 miles over the change schedule and the crankcase filter has never been changed. Prior to shutting down I had driven 50 mniles to a Dr's appointment at interstate speeds with no problems other than the check engine light being on. The truck is mostly driven at interstate speeds except when towing our 11,000 lb fifth wheel. Exhaust pipe is clean and I'm getting mpg 21 hwy and 18 in town. Last change to engine was to replace the original equiptment air filter with a K&N which improve the engine responce and the engine seemed to be breathing better.
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