Regen failure on a diesel truck

Find nearby help

What this may mean

Soot overload
Temp sensors
DOC/DPF restrictions
Interrupted regen

Should you keep driving?

Short moves to a safe lot may be OK; long hauls risk inducement. Follow codes and fleet SOP.

Information to gather

Soot load if shown
Codes
Last regen attempt

Provider type to find

DPF / aftertreatment specialist (mobile or shop)

FAQ

Is forced regen always the fix?: It helps when the system is healthy enough. Underlying sensor or catalyst faults need deeper repair.

Emergency truck repair guide · Mobile truck repair