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About timmer62

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  1. I have a 2017 Mack MRU 613 with an MP7 engine (concrete pump truck). The engine intermittently is cutting off. Some days as often as 10-20 times. Other days (like today), it did not cut off once. Completely unpredictable. When it cuts off, the dash remains illuminated (fuel gauge shows level, coolant temp gauge registers temp, etc.). However the DEF tank registers zero empty even though the def tank is full. Whatever the cause is, whenever it occurs the def level sensor is somehow not When it cuts off while in motion, it restarts after coasting briefly. After restart, def tank re
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