Once again I'm having regeneration problems on my 2008 Cummins 8.3. I don't know if this is "normal", or if I really do have an issue.
3 years ago the DPF plugged up to the point of derating, at 100k miles, and I had it replaced at considerable cost. The truck has run fine since then, but, after a couple of hours of city driving yesterday which couldn't be avoided, I arrived home to hear that dreaded groaning engine sound and the DPF full light came on. I tried to start a manual regen, but I'm not sure I pressed the switch correctly as I later saw it has a little slider tab and a down arrow on it. I did not notice that.
Now, I'm hoping I can simply hook up and start towing to make this problem go away. There's no freeway near me so I cannot drive at high speed. I may be able to get the manual regen to work later if I press the switch correctly, but that requires a warm engine and I'm not taking that chance right now.
Sooo... can I assume this truck is regenerating properly when driving as it's been fine for years until yesterday? Can a truck shop make this thing regen if I can't? (I talked to Sportchassis yesterday but this person wasn't much help)
Thanks