Diesel, DPF, DEF & EGRDiagnostic helpCommunity Starter

2019 Ram 2500 — dPF regenerations seem much more frequent

RotorWrench276Community StarterJul 10, 20262019 Ram 2500 CumminsOrlando
The truck has been doing more short trips and active regeneration seems to happen more often. No codes. What scan data helps confirm soot load and regen frequency before assuming failure?
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12 replies

WrenchHunter858Community StarterCommunity StarterJul 10, 2026permalink
I'd want a measurement, not a hunch. Two 2019 Ram 2500s can feel identical and have different causes, so measure before you copy someone else's repair. If the cheap test changes it, stop and reassess. If it doesn't change the out-the-door or the repair estimate, it's noise. I'd sleep better after that step, even if it finds nothing. Video is ugly but it shows the hesitation.
RustBeltGuyCommunity StarterCommunity StarterJul 10, 2026permalink
If it were in my driveway, get a real battery/charging test on the 2019 Ram 2500, not just resting voltage, before blaming a module. Don't erase codes until someone who can help has seen them. That's the whole play. I'd rather look cautious in this thread than stuck later.
TruckLearnerCommunity StarterCommunity StarterJul 10, 2026permalink
This is usually cheaper to test than to guess. Swap the cheap/easy piece first on the 2019 Ram 2500 and see if the fault moves. If the cheap test changes it, stop and reassess. Post the numbers (or the code) and people can get more specific. Happens in gear, not in park, for what that's worth.
QuietFanCommunity StarterCommunity StarterJul 10, 2026permalink
Ask what changed right before it started. Two 2019 Ram 2500s can feel identical and have different causes, so measure before you copy someone else's repair. You'll know quickly if you're on the wrong tree. A shop burned me once by skipping that step. I'm in no rush to be a hero on it.
TowDaily897Community StarterCommunity StarterJul 10, 2026permalink
Log the conditions before you spend. Loaded-suspension checks on the 2019 Ram 2500 catch play that a wheels-hanging inspection misses. That's the branch I'd chase this week. On “dpf regenerations seem much more frequent,” that was the fork that mattered for me. This is from a 2019 Ram 2500 in Orlando. Write the result down so the next test isn't a repeat of the last one. Happens in gear, not in park, for what that's worth.
RotorWrench276Community StarterCommunity StarterJul 10, 2026permalink
OP update: scanned the 2019 Ram 2500 again and still only have the one pending code, no new lights. Only after sitting overnight so far.
RotorWrench276Community StarterCommunity StarterJul 10, 2026permalink
OP update: scanned the 2019 Ram 2500 again and still only have the one pending code, no new lights. I refuse to clear codes until someone else sees them.
WeekendGuy384Community StarterCommunity StarterJul 11, 2026permalink
I wouldn't throw parts yet. Loaded-suspension checks on the 2019 Ram 2500 catch play that a wheels-hanging inspection misses. If the cheap test changes it, stop and reassess. No need to make it theatrical. If it repeats twice more I'll book time.
FlatSixGeekCommunity StarterCommunity StarterJul 11, 2026permalink
If it were in my driveway, move a coil or plug on the 2019 Ram 2500 if it's cylinder-specific and see whether the code follows. That's the branch I'd chase this week. Verbal 'we'll take care of it' is not a plan. Doing the boring step first on purpose.
WrenchHunter858Community StarterCommunity StarterJul 11, 2026permalink
I'd want a measurement, not a hunch. Loaded-suspension checks on the 2019 Ram 2500 catch play that a wheels-hanging inspection misses. Save the big job until that test fails. If it doesn't change the out-the-door or the repair estimate, it's noise. Not driving it hard until I know more.
RotorWrench276Community StarterCommunity StarterJul 11, 2026permalink
OP update: scanned the 2019 Ram 2500 again and still only have the one pending code, no new lights. I'd rather look cautious in this thread than stuck later.
RotorWrench276Community StarterCommunity StarterJul 11, 2026permalink
Tried a second charger / second scan and the story on the 2019 Ram 2500 didn't change. That's my plan before I call anyone.
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