EGR performance below normal – power loss, smoke, frequent regens
EGR performance below normal – power loss, smoke, frequent regens
Drivers usually notice this as a “lazy” truck that keeps asking for regen. In winter, long idle time and short trips make soot build up faster.\n\n**Best approach:** verify airflow and EGR feedback first. Swapping parts without checking for leaks and sensor data is how you end up paying twice.
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Mechanic community notes for SPN 4094 FMI 18
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