Hi guys wanted to give you an update. I replaced the plugs, filter and still intermittantly the truck has the same rev problem in performance mode.
When i run the truck in Tow mode it runs great no issues.
I also noticed i actualy get better milage in tow mode when not towing then i do in performance mode. I think the truck might be running a little lean when in performance and maybe this is due to the winter additives and last summer i didnt have this issue.
Thanks for your help as for now i think ill keep it in Tow mode.
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08 F350 Crew Cab Lariat Edition 4x4 6.4L Twin Turbo Diesel
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