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+--- Thread: ISB 6.7 - Crankcase pressure, constant clogged DPF (/showthread.php?tid=3893)
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RE: ISB 6.7 - Crankcase pressure, constant clogged DPF - zbot - 01-07-2019
(12-22-2018 )Moose Wrote: Check with Ford as some of these were victims or bad air cleaner/piping resulting in dusting/early engine failures.
You weren't kidding https://ford.oemdtc.com/828/fault-codes-555-and-556-2012-2013-ford-f-650-f-750-cummins
RE: ISB 6.7 - Crankcase pressure, constant clogged DPF - Moose - 02-03-2019
Right before my exit from the big C I worked two tow trucks cases with this problem. I kinda refused to believe an engine with less than 100k miles was dusted... a couple days later the correct orifice came in and we went and road tested with the manometer...... Both were F650 with 6.7's. one had the bad clamp the other a hose was split and was ingesting. Guy I knew at Ford clued me into the issue. Once we started taking the intake and CAC system down it was very clear what caused it.....