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6.7 Tech
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[QUOTE="sootie, post: 1552686, member: 8162"] Incorrect. The poster got bad fuel, which wiped out his high pressure system. His proactive turbo replacement may or may not have been necessary. Job 1 6.7s had the following common issues: -trucks built prior to April 2011 had a heat treat issue with the exhaust valves, which would cause them to come apart and wipe out the motor. -Transmission valve bodies had some funky activity regarding low speed, low throttle percentage shifting. Ford issued a TSB for this, and the solution was valve body replacement. -2011 model year trucks had plastic oil pans which were leak prone. 2012 + came with steel and they are a direct bolt on replacement. -11/12 turbos had turbo bearing issues due to the inherent design, and that is why the 13/14 turbos were a slight improvement, and a hard boost limiter installed on the PCM. Most problems showed up in tuned scenarios. 2015+ turbos are a direct bolt in swap and have been exceptionally reliable and support just under 600hp Some 6.7 notes: -I have had multiple job 1 6.7's, some of which dropped valves, some of which did not. All well over 200k miles. -I had a job 1 6.7 with a modded 2015 turbo, stroker hpfp and stock everything else last over five years and 50k of abuse, on stock everything including trans. Dyno'd 668 / 1248. I sold it and its still ticking in the same form. -13+ trucks had my ford touch with the updated dash and centre console. Also platinum trim became available. -Cold side intercooler pipes had a habit of splitting under high heat/boost/load scenarios. Host of cheap aftermarket options available. Updated on the 17+ models. -Rads often leak at the seam as they are a plastic end tank. Most commonly because of failing cab mounts or high suspension articulation circumstances. Don't be tempted by the solid aftermarket options- they fail even sooner as they dont allow for flex. -Clean fuel is of utmost importance if you want the fuel system to survive. Conclusion: 11s are hit and miss but mostly hit. 12s are prteey solid but move to 13/14 for advanced tech and turbo reliability. 15/16 are the last of the "real steel" super duties and have been tremendously reliable. 17-19 are decent but had some body issue growing pains (leaking windows / roofs, poor panel adjustment, wiring gremlins), but still had the 6 sp trans. 20+ have subtle engine changes and the 10 sp trans which i HATE. [/QUOTE]
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