Technician A says that one of the most common causes of DPF failure is thermal stress during normal regeneration cycles. Technician B says that a crack in the DPF substrate immediately renders the device useless. Who is correct?

Question

Quizplus · Accepted Answer

Both Technician A and Technician B are correct. Thermal stress during regeneration cycles can indeed cause DPF failure, and a crack in the DPF substrate can render it ineffective.

Technician a Says That One of the Most Common Causes