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You’re not getting much effective regeneration action sitting idle in neutral. It will “finish” but usually that results in less soot reduction and it’ll cause the next one to happen sooner if your drive cycles remain consistent.
The inconsistency in how the system operates is truly maddening.
Given proper system component operation, and adequate drive cycles, the system is very consistent.
I don’t see how removing the emissions system from a truck absolves the manufacturer of any liability for reliable system. I could see if the vehicle is still within the emissions warranty period and someone removes them if there is trouble, thus letting the manufacturer off the hook for the repair. The ones I’ve seen do it are primarily outside of that emissions warranty and have problems. Then at that point, it’s pay X - amount for a system that has already given me trouble or pay and get rid of it altogether. IMHO, if the manufacturer was forced to cover the emissions system the same length as say, the powertrain warranty, they would then be forced to make a more reliable system.
It started back when I left the dentist office and went for 3 more miles and shut off again.
That’s what I’m referring to.
Yeah that makes sense. Didn’t have enough to complete from the sitting idle period. I’m fairly certain there’s logic in the programming that cancels the regen when not all parameters are being met and maintained (temps, speed, etc etc)
Next time I’ll just ask for clarification instead of being long winded.
My drive cycles have been consistent for the past year except for the 4000 miles towing it got at the first of the month. This is the first soot load regen I’ve had in a year and it went from an eighth on the DPF gauge to regen in 5 miles ? That doesn’t seem very consistent to me. I had it do the same exact thing almost exactly a year ago. September 23, 2024 to be exact.
Yeah that’s not right.
Yes. Only 11 hours since the last one. I watched it fill up on the ScanGauge.
I had a similar event last year. Normally 24 hour regens, then all of a sudden I watched the soot level climb in short order on the interstate. It then went into a soot triggered regen at 15 hours. I had recently filled at a station I dont normally use, and suspect the fuel I got there was a major contributor.
I ve been running on this tank for fuel for the last 3 weeks and I have an auxiliary tank that had 25-30 gallons in it that I have been trying to empty out. It has been acting kinda weird like it was filling quicker than normal but the DPF gauge had only gotten to the first mark when we started this morning. What’s weird is it did the same exact thing last year on September 23 and I did a forced parked regen on September 25 last year. Probably all coincidence but still weird.
Maybe some face-plugging on the DOC or DPF?
I ve never checked them because it has been doing so well. The last 5 regens have all been well over 1000 miles except the last one. My son drove me to the hospital 2 weeks ago in it and brought the truck back home so I don’t know but I suspect he may have idled it for quite awhile by comparing the mileage to the time. I can’t verify that but he has never been around a diesel pickup. It’s still just crazy how fast it filled up this morning.
My 2024 did this right after I got it and this event is what spawned me to buy the Edge CTS3 and monitor everything, as well as start using Archoil. Now the EVIC dpf gauge doesn't climb rapidly like it was doing, I think the Archoil is definitely helping. But I also have a better idea of when it will regen. Yesterday it was just over 25% on the EVIC gauge when we pulled into my daughter's horse lesson. But the time we returned to the house the gauge was at 45%, so i knew it was gonna regen soon (and probably on my way to work in the morning.) I decided to drop her and the horse off and left with the trailer hooked and planned to hit the highway. As soon as i got on a main road and dropped the hammer it went into regen. I wanted a good burn so I hit I-75 and ran her up to almost 80mph 10 miles north, hit an exit and back down to our exit doing almost 80 the whole way hauling the horse trailer. Temps during regen were over 1,000* F the whole time so should have been a good soot burnoff. Regen finished just after I got off the highway. I'm seeing my avg regen cycles slowly climb. They were like 150 mi when I first got the truck, now it's over 430 miles average. Un-F-ing the stagnant idle hours the PO put on the truck, so i think the truck had to go through a relearn process possibly?
I’m very conscious about my idle time. I have 11.13% idle time on it right now and some of that was during the last regen. I didn’t know whether to try to let it finish or just cut it off since the DPF temperature was over 1000 degrees. Should have cooked some out just sitting there.
