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Automatic Regen too often

Deltron said:
I'd like to know too. If they can't straighten out my truck I may order a new one.

It seems Ford's quality has dropped off a cliff starting in '22 pretty much ruling them out. I don't know anything about the GM HD trucks. Are they also troublesome?
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Yes they are. My best friends dad has a chevy 3500 that is having issues. He averages 10 mpg but no CEL, and techs seem unable to solve the issue so far.

Similarly, if you read above I have two close friends that used to work for Ford and GM. Both have left due to the number of HDs returning with "unsolvable" problems. With that said, I need a diesel HD so if my problems don't get solved and Ram buys my truck back I'm probably trying a GM HD.
 
unclelala said:
The last 3 weeks or so my soot level has been zero constantly and as far as I can tell it hasn’t done a regen . I have gone on 3 trips of approx. 300 miles each with the 5th wheel. I use tow haul mode and full exhaust brake and use the gear limiter to 5th gear.
Our travel without the 5th wheel was minimum. It’s all most like I have the opposite symptoms as most of you on this thread.
I get no warnings or blinking lights etc. and the truck seems to run great. So is this too good to be true , do you think somethings wrong.
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I have similar results. I'm at 1710 miles since the last regen. I've been watching the DPF gauge constantly, because of threads like this. Most of my miles are hauling a 20'x8.5' double axle enclosed trailer (~8k lbs), and about 80% of that on interstate highways. I figured it would do a 24 hour regen on my most recent trip, but it did not. I have to be over 24 hours, unless I was averaging 75+mph, which I was not as there are stretches of 55mph 2 lane stuff and dirt roads mixed in. I do not lock out any gears but do use tow/haul and full E-brake.
 
jebruns said:
I have similar results. I'm at 1710 miles since the last regen. I've been watching the DPF gauge constantly, because of threads like this. Most of my miles are hauling a 20'x8.5' double axle enclosed trailer (~8k lbs), and about 80% of that on interstate highways. I figured it would do a 24 hour regen on my most recent trip, but it did not. I have to be over 24 hours, unless I was averaging 75+mph, which I was not as there are stretches of 55mph 2 lane stuff and dirt roads mixed in. I do not lock out any gears but do use tow/haul and full E-brake.
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1,700 miles between regeneration cycles is likely impossible due to the nature of the 24 hour regen and the way the truck operates. You’d need an average speed of at least 70mph or more and that’s next to impossible unless you never stop moving for fuel, bathroom breaks, etc. Maybe you missed the regen notice?
 
mbarber84 said:
1,700 miles between regeneration cycles is likely impossible due to the nature of the 24 hour regen and the way the truck operates. You’d need an average speed of at least 70mph or more and that’s next to impossible unless you never stop moving for fuel, bathroom breaks, etc. Maybe you missed the regen notice?
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I don't think so. The DPF gauge has been displayed the whole 1700 miles and I've made a habit of checking it often.
 
Deltron said:
I'd like to know too. If they can't straighten out my truck I may order a new one.

I don't know anything about the GM HD trucks. Are they also troublesome?
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I had an hd gasser at work for a while so i can't comment on durability, but i liked it the least of the 3. Just annoying stuff that would keep me from doing further research.

The new door mounted mirrors are obnoxious and imo, ugly. I could never get them adjusted right.

The curved bottom door hits your shin if your not used to standing out of the way during quick entry. Or partial door opening due to parking and the giant mirrors.

The ifs does some weird death wobble at speed if you have small alternating uneven or holey road surface.

The window switches react differently than ford or ram when trying to adust outside of open or close.
 
gpattikjr said:
The ifs does some weird death wobble at speed if you have small alternating uneven or holey road surface.
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I didn't think IFS did death wobble until I was towing a 24' trailer in the mountains with an '06 Suburban 2500 with the 8.1L. Almost wrecked around a wide turn running 65. Literally couldn't hold on the the steering wheel. Scared me half to death.

Installed a steering stabilizer after that. Interestingly the vehicle had the factory brackets but no stabilizer on the Suburbans.
 
jebruns said:
I don't think so. The DPF gauge has been displayed the whole 1700 miles and I've made a habit of checking it often.
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More likely that you missed a regen than you're over 24 hours since the last regen completed.

The only time I've seen a regen go over 24 hours is when the ECM received an updated on my 2018 and that reset the 24 hour clock.
 
Fingers crossed. The dealer replaced my DPF. 200 miles and from all appearances the issue is resolved. Soot load actually decreased driving 65 mph versus skyrocketing before.

They had earlier replaced the air filter box and the MAF. They said no question the MAF was faulty and are now thinking the faulty MAF damaged the DPF. I'm not too sure that both the MAF and DPF weren't both faulty in that there's soot in my tailpipe.

I've been told if there's any soot in the tailpipe it indicates likely cracks in the DPF.

We'll see. Headed to Colorado end of the month so I'll have around 2k miles towing 14k. If it appears fixed I'll update the spreadsheet.
 
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An odd thing. All the screws on the airbox plus the two sensors have yellow paint on them now.

I have no idea why that would be the case if they were just replacing the DPF.
 
Just got a call on mine. They are saying the faulty MAF damageed the DPF and lack of particulate sensor meant no check engine light. Seems very similar to Delton above. They install the new DPF tomorrow, will do an oil change and CCV change then test drive. They hope to have it back to me by the end of the week.

Other side note - Fleetguard found my lost oil sample and I should have my results back tomorrow. I'm hesitant to believe there isn't still another underlying problem but perhaps I'm just jaded. I hope the new DPF fixes the issue as well as the new MAF. The fresh oil and new CCV I suppose will just help things maybe run better.

If I get the truck back I intend to do one fuel tank without 6400d to see how it behaves but will likely be running archoil from here on out.
 
AH64ID said:
More likely that you missed a regen than you're over 24 hours since the last regen completed.

The only time I've seen a regen go over 24 hours is when the ECM received an updated on my 2018 and that reset the 24 hour clock.
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I don't think I missed a regen. Been watching it pretty close. The 1700 miles have been spread out over a couple of months.
 
My truck averages 900 miles to current mileage with regens. Performing the math handculated. Most miles are freeway speeds. Little stop and go city stop light to stop light. All my actives have been 24hr engine hours with the exception at new with 500 miles it went into regen. Some idle hours while sitting at the dealer lot to be sold. Zero issues with my truck to date.

1700 miles is a lot before triggering a single active regens.
 
AH64ID said:
The only time I've seen a regen go over 24 hours is when the ECM received an updated on my 2018 and that reset the 24 hour clock.
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This also happened to mine at about one year. They did the update without letting me know or noting it on the invoice. I asked them about it when I noticed a couple of things that alerted me to it. Indeed they flashed an update and even though the 24 hour clock had been getting closer to a regen, it started counting over. Since then it has been 24 hours each time again.
 
22PearlRamMegaHD said:
Just got a call on mine. They are saying the faulty MAF damageed the DPF and lack of particulate sensor meant no check engine light. Seems very similar to Delton above. They install the new DPF tomorrow, will do an oil change and CCV change then test drive. They hope to have it back to me by the end of the week.

Other side note - Fleetguard found my lost oil sample and I should have my results back tomorrow. I'm hesitant to believe there isn't still another underlying problem but perhaps I'm just jaded. I hope the new DPF fixes the issue as well as the new MAF. The fresh oil and new CCV I suppose will just help things maybe run better.

If I get the truck back I intend to do one fuel tank without 6400d to see how it behaves but will likely be running archoil from here on out.
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FYI Archoil is on sale, 10% to 30% off at Amazon 7/16 and 7/17 https://www.amazon.com/stores/page/...bUusdZiDXP_4SsIslsvm3Irz-mBPCFcHPL2exk.SwSu9D
 
Well looks like I'm getting the truck back tomorrow. Their new answer is a $7 intake seal.

Can't make this sort of thing up. Replace cheap parts and give it back. Stellantis and their entire dealer network are useless. I have lost all faith.
 
Pure anecdotal, but my truck does seem to be performing better with the Archoil cleaner. Almost time to start with the regular treatment, as well. My EVIC has been sitting on 0 since I put it in (about 8 hours of mixed, normal-for-me driving). I'm coming up on my 24 and looking forward to how well that goes. I did have the dpf replaced 3 months ago and the truck seems to be behaving as it should.

Side note plug for Archoil customer service: I recently bought some bare rural land and I'm building my home there. It's a new address added to the county so it will take some time for it to populate the various map websites. I used it for my Archoil purchase, and it didn't come up as a valid address for them. They sent me an email, then a personal call from a very nice gentleman to clarify my shipping address. It's nice to get that kind of service these days.
 
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