Why does my truck keep regenerating?
Why does my truck keep regenerating? A forced regen occurs when soot builds up inside the diesel particulate filter (DPF) to the point that the vehicle is no longer operable. When this happens, a driver has to pull over and initiate a self-cleaning process that can take up to 40 minutes — valuable time that could have been spent on the road. What does exhaust system regeneration mean? • Exhaust System — Regeneration Completed — This. message indicates that the Diesel Particulate Filter. (DPF) self-cleaning is completed. If this message is. displayed, you will hear one chime to assist in...