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2025 Cummins--Anyone notice that DEF gauge not reading correctly?
I have a 2025 3500 cab and chassis. I have experienced the def gage problem also have had the flash done but didn’t help taking it back Friday. Mine will range from full to saying it will go in limp mode in 200 miles in just a few miles of driving will keep posted on what happens.- timberjackrob
- Post #60
- Forum: 2025+ 6.7 Cummins I6 ZF 8 Speed