Diesel Particulate Filter (Dpf) - Excessive Brick Shift - Navistar MaxxForce DT Diagnostic Manual

DIAGNOSTIC MANUAL

16.1.7. Diesel Particulate Filter (DPF) - Excessive Brick Shift

1. Diesel Particulate Filter Outlet
Temperature (DPFOT) sensor
Figure 52 Diesel Particulate Filter (DPF) - Excessive Brick Shift.
Appearance
Cause
Action
166
The DPF brick has shifted past the DPFOT sensor causing damage to the DPF
substrate.
Excessive soot accumulation caused by a base engine concern resulting in higher than
normal exhaust back pressure.
Determine and repair the root cause of the excessive exhaust back pressure. Once the
root cause is repaired, replace the DPF.
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