DPF soot load too high – regen required / forced regen likely
DPF soot load too high – regen required / forced regen likely
This is the classic “I’ve been idling all week and now it hates me” code. The truck needs a full regen, and it needs you to stop killing the regen halfway through.\n\nIf it comes back quickly, you’ve got a root cause (sensor data, exhaust leak, or restriction).
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Mechanic community notes for SPN 3719 FMI 16
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