Regens at alarming rate!

[mhraxo]

It doesn’t move off of zero because it is doing passive regens. That’s when the exhaust temperature is high enough for it to regen without extra fuel being injected into the exhaust via a late injection of fuel on the exhaust stroke. It can do a passive regen empty but it (mine) will only do it above 75 mph and du a long drive. Does better 80-85 mph.

I can’t really be running it 80-85 around here lol. I picked it up at dealer after they had it for a few days. Was told it went nearly 165 miles before a regen but again they did say that’s not proper either. Anyways. Mechanic said trick for now is keep it under 2000 rpm with this tune that was done during recall and it should go 150 or so between regens. So yeh I’m ok with that while we wait a month or more for the part. That is a guess as well that may fix the issue permanently… nothing concrete. So start it up put my info in gps quick peek at the guages and dpf is at 12%. 1/2 mile down the road. p00f screen says regening UGGGGH. 50 mile drive and it’s at 40% ready to do another regen. Never crossed 1900/2000.
So mad I stopped at another brands dealer I was passing and unloaded it. Done with this. Paid to much for this to be a guessing game experiment as to what will fix it and when. Just so frustrating cause I work with aerospace and if we worked like this ppl would be fired and replaced with competent ones in a heartbeat.

 

[OLEJOE]

I can’t really be running it 80-85 around here lol. I picked it up at dealer after they had it for a few days. Was told it went nearly 165 miles before a regen but again they did say that’s not proper either. Anyways. Mechanic said trick for now is keep it under 2000 rpm with this tune that was done during recall and it should go 150 or so between regens. So yeh I’m ok with that while we wait a month or more for the part. That is a guess as well that may fix the issue permanently… nothing concrete. So start it up put my info in gps quick peek at the guages and dpf is at 12%. 1/2 mile down the road. p00f screen says regening UGGGGH. 50 mile drive and it’s at 40% ready to do another regen. Never crossed 1900/2000.
So mad I stopped at another brands dealer I was passing and unloaded it. Done with this. Paid to much for this to be a guessing game experiment as to what will fix it and when. Just so frustrating cause I work with aerospace and if we worked like this ppl would be fired and replaced with competent ones in a heartbeat.

Finding the competent ones would be the problem. The engineers don’t know what the problem is or they are not saying. They are more interested in you buying an EV to replace it. I really don’t know if they know what the problem is or if they are looking. People who use these trucks for pulling loads constantly don’t seem to be having as many problems as people who daily drive them. The fact that the MAF sensor is back ordered may be a clue as to what they think or know is wrong. If it is a cure I doubt there will be a recall for it. Currently Im not having any problems with my truck. When the gauge goes up I take it out on the highway and clean it out. I guess I’ll keep doing that until it doesn’t help or they pull my driver license for too many speeding tickets.

 

[mbarber84]

Finding the competent ones would be the problem. The engineers don’t know what the problem is or they are not saying. They are more interested in you buying an EV to replace it. I really don’t know if they know what the problem is or if they are looking. People who use these trucks for pulling loads constantly don’t seem to be having as many problems as people who daily drive them. The fact that the MAF sensor is back ordered may be a clue as to what they think or know is wrong. If it is a cure I doubt there will be a recall for it. Currently Im not having any problems with my truck. When the gauge goes up I take it out on the highway and clean it out. I guess I’ll keep doing that until it doesn’t help or they pull my driver license for too many speeding tickets.

Depending on what’s causing the frequent regeneration, constant towing can mask the problem. There are a bunch of trucks that are fine as long as they’re towing, but the minute the trailer is unhooked they’re regenerating every 100 miles or less. Conversely, there are also trucks that are regenerating every 100 miles or less even if they’re towing. This is what leads me to think there are multiple different failures out there at the heart of this issue.

 

[mhraxo]

Finding the competent ones would be the problem. The engineers don’t know what the problem is or they are not saying. They are more interested in you buying an EV to replace it. I really don’t know if they know what the problem is or if they are looking. People who use these trucks for pulling loads constantly don’t seem to be having as many problems as people who daily drive them. The fact that the MAF sensor is back ordered may be a clue as to what they think or know is wrong. If it is a cure I doubt there will be a recall for it. Currently Im not having any problems with my truck. When the gauge goes up I take it out on the highway and clean it out. I guess I’ll keep doing that until it doesn’t help or they pull my driver license for too many speeding tickets.

Depending on what’s causing the frequent regeneration, constant towing can mask the problem. There are a bunch of trucks that are fine as long as they’re towing, but the minute the trailer is unhooked they’re regenerating every 100 miles or less. Conversely, there are also trucks that are regenerating every 100 miles or less even if they’re towing. This is what leads me to think there are multiple different failures out there at the heart of this issue.

I was running mine on open 2 lane roads at 50 to 60 mph for 30/35 min it would take each regen. My concern with it was 2 things first i calc it out once it would use an avg of 3 gallons each regen. At 5 to 7 a week thats alot of fuels a month! at the low end 5 a week that's 15 gal a week and i would let it sit a week so 15 regens a month at $4.75/gal around here that's over $200 mo in fuel im spending!!! My wife was having a coronary over this truck wanting to know why were always putting fuel in it anymore. Secondly with they are saying this DPF has a life cycle, are they gonna replace that for free when its shot?

My exp was like OLEJOE it had no issues towing because of the exhaust heat I was generating, it would do a regen at the start of a trip but after that i would go 3 to 5 hours and the gauge never moved, even at rest stops, i would let it idle for 15 to 20 min, didn't wanna shut it off cause of oil temps. When i picked it up yesterday I had a conversation with the advisor and the head mechanic and they were in discussions with Stellantis, they said they just talked to them 20 min before I arrived and that's who told them they want them to try the MAFS sensor (when ever they can get one which at this point is 30 day min prolly close to 60 they told me) So basically they are trouble shooting with parts nothing concrete. They also said there recommending keep it under 1900 rpms and that should go 150 miles or more between regen. They did also say though that Ram will have to do another recall when this is figured out to resolve it because i guess there is a Ram tech2tech forum they use that they said is polluted with this issue across the country. 1900 rpms didn't work out, i was only idling 5 min getting my gps setup and the DPF was at 12% and soon as i got 1/2 mile down the road it regened, then I took their advice never crossed that threshold and it still climbed like it always has, back to 40%+ in 60 miles (where it always regens). I tried running it low before i tried aggressive none of that has anything to do with it.

Either way you slice it Ram has issues. Not just this in problem. I had that truck for 8000 miles or if you look at it years wise either way it had 4 recalls with a potential 5th......c'mon I never owned a vehicle with 1 recall at best in the past. It is/going to take a toll on their value. When i got rid of it I got so lucky... a real Christmas Miracle lol. Dealer told me we won't even resell these on the lot, we own a jeep/Ram dealership a couple more miles down the road!... lmao. Mine was a 3500 dually so he told me the small independent towhaulers want these. So when i pulled in he got on the phone, never looked it up for value, he said what i was doing was calling my list of towhaulers to see who would give what for it and had 2 going at it for it. He said these rams are losing alot of their value anymore but the the towhaluers aren't afraid of them knowing the trucks going to spend the rest of its days pulling and these guys will run them for 200k then get another off me.

 

[JMR62]

Dealers were indeed told to inform their customers that the particulate matter sensor was not installed, and that it would need to be brought back for a recall. This is the document that every buyer was supposed to be given at the time of purchase:

View attachment 65734
I signed one the day my 2022 was delivered. That was 11/30/21.

Yet again, the particulate matter sensor is not the cause of frequent regeneration cycles, nor is it the fix.

Correct it is not the cause or the fix. The mechanic at my dealer told me that the Y43 recall would however need to be done at some point. For instance I have a surging issue with my '22 that he said would likely be addressed with a software update that is included in the Y43 recall. He said that if you installed the update only without replacing the DPF sensor you would get a code because then the ECM could not see the DPF sensor.

Dealers were indeed told to inform their customers that the particulate matter sensor was not installed, and that it would need to be brought back for a recall. This is the document that every buyer was supposed to be given at the time of purchase:

View attachment 65734
I signed one the day my 2022 was delivered. That was 11/30/21.

Yet again, the particulate matter sensor is not the cause of frequent regeneration cycles, nor is it the fix.

Yes, I agree completely the particulate matter sensor has nothing to do with regeneration cycle frequency.

 

[jameb2001]

I did not receive this notice at purchase time. I'm on waiting list for mine, I'm 9 months out at minimum. Now I'm in low power mode so I can't even tow with the damn truck.

 

[mhraxo]

I did not receive this notice at purchase time. I'm on waiting list for mine, I'm 9 months out at minimum. Now I'm in low power mode so I can't even tow with the damn truck.

9 months.... totally unacceptable, they had told me they would expedite it and had stellantis involved and they were saying 30 to 60 days. That was unacceptable

 

[baker01]

I did not receive this notice at purchase time. I'm on waiting list for mine, I'm 9 months out at minimum. Now I'm in low power mode so I can't even tow with the damn truck.

9 months is BS, In the state of California you can't renew your vehicle registration if the recall has not been completed. The recall will not fix your trucks low power mode.

 

[mbarber84]

Correct it is not the cause or the fix. The mechanic at my dealer told me that the Y43 recall would however need to be done at some point. For instance I have a surging issue with my '22 that he said would likely be addressed with a software update that is included in the Y43 recall. He said that if you installed the update only without replacing the DPF sensor you would get a code because then the ECM could not see the DPF sensor.

Yes, I agree completely the particulate matter sensor has nothing to do with regeneration cycle frequency.

He’s telling you the correct info. That’s one of the primary reasons to get Y43 completed. If the truck requires any future PCM flashes, you’ll end up with a perpetual check engine light once the flash is completed. The new software contains the programming to detect and communicate with the PM sensor. Once the new flash is done, the truck will be “looking” for the PM sensor. If it’s not there, you’ll get a “lost communication with PM sensor” DTC. That will turn the MIL on until the PM is installed.

 

[flan]

I did not receive this notice at purchase time. I'm on waiting list for mine, I'm 9 months out at minimum. Now I'm in low power mode so I can't even tow with the damn truck.

The recall won’t fix being in “low power mode”. Do you have a check engine light on?

 

[DougB]

294 mi between regens this time. 200 of those miles were towing the 8500ish lb TT and it passively regened just fine during towing. Not sure how many miles after the towing trip it took to force the next regen but during it I got the “keep driving” message several times which hadn’t ever happened in the 19k miles on it. The iDash read 100% for about 7 miles while I took it on a regen run at 60-70mph. Dropped to 92 but went back to 100 after a few more miles, held there for 4-5mi before finally dropping steadily and stopping around 47 after about 25mi total. Next restart it was at 7%. 35 miles since regen and it’s now at 54% and 1/4 on the dash meter. Crazy POS. Starting to wonder if I’m eerily close to a plugged DPF.

Was wondering if disconnecting the battery for a while might cause the computer to erase any learned data and go back to factory lookup tables and maybe would be better for a little while? Seems odd these trucks slowly get worse as if it’s building a bad lookup table of data that just keeps getting worse.

 

[mbarber84]

294 mi between regens this time. 200 of those miles were towing the 8500ish lb TT and it passively regened just fine during towing. Not sure how many miles after the towing trip it took to force the next regen but during it I got the “keep driving” message several times which hadn’t ever happened in the 19k miles on it. The iDash read 100% for about 7 miles while I took it on a regen run at 60-70mph. Dropped to 92 but went back to 100 after a few more miles, held there for 4-5mi before finally dropping steadily and stopping around 47 after about 25mi total. Next restart it was at 7%. 35 miles since regen and it’s now at 54% and 1/4 on the dash meter. Crazy POS. Starting to wonder if I’m eerily close to a plugged DPF.

Was wondering if disconnecting the battery for a while might cause the computer to erase any learned data and go back to factory lookup tables and maybe would be better for a little while? Seems odd these trucks slowly get worse as if it’s building a bad lookup table of data that just keeps getting worse.

I don’t believe disconnecting the battery will clear the data you’re referring to. These trucks do keep freeze frame data and historical data. I’m not fully versed on how that end of the system works but as I understand it, the truck keeps a “record” of some of the emissions data in order to monitor the DPF status. I remember reading a document or article that explained this all in great detail but I can’t seem to remember where. But the basis was that the historical data is compiled over time so that the truck can estimate when the DPF is nearing the point where ash build up is restricting the media enough to warrant a replacement. When a new DPF is installed, as part of the install, that historical data has to be erased so that the truck can start over with the new DPF.
Really wish I could find that document….

 

[DougB]

I don’t believe disconnecting the battery will clear the data you’re referring to. These trucks do keep freeze frame data and historical data. I’m not fully versed on how that end of the system works but as I understand it, the truck keeps a “record” of some of the emissions data in order to monitor the DPF status. I remember reading a document or article that explained this all in great detail but I can’t seem to remember where. But the basis was that the historical data is compiled over time so that the truck can estimate when the DPF is nearing the point where ash build up is restricting the media enough to warrant a replacement. When a new DPF is installed, as part of the install, that historical data has to be erased so that the truck can start over with the new DPF.
Really wish I could find that document….

Didn’t think about DPF data. Was thinking more of engine parameters that may be causing the issues. Since it takes a while for the issue to start thought it might build tables that get worse over time.

 

[mhraxo]

294 mi between regens this time. 200 of those miles were towing the 8500ish lb TT and it passively regened just fine during towing. Not sure how many miles after the towing trip it took to force the next regen but during it I got the “keep driving” message several times which hadn’t ever happened in the 19k miles on it. The iDash read 100% for about 7 miles while I took it on a regen run at 60-70mph. Dropped to 92 but went back to 100 after a few more miles, held there for 4-5mi before finally dropping steadily and stopping around 47 after about 25mi total. Next restart it was at 7%. 35 miles since regen and it’s now at 54% and 1/4 on the dash meter. Crazy POS. Starting to wonder if I’m eerily close to a plugged DPF.

Was wondering if disconnecting the battery for a while might cause the computer to erase any learned data and go back to factory lookup tables and maybe would be better for a little while? Seems odd these trucks slowly get worse as if it’s building a bad lookup table of data that just keeps getting worse.

I don’t believe disconnecting the battery will clear the data you’re referring to. These trucks do keep freeze frame data and historical data. I’m not fully versed on how that end of the system works but as I understand it, the truck keeps a “record” of some of the emissions data in order to monitor the DPF status. I remember reading a document or article that explained this all in great detail but I can’t seem to remember where. But the basis was that the historical data is compiled over time so that the truck can estimate when the DPF is nearing the point where ash build up is restricting the media enough to warrant a replacement. When a new DPF is installed, as part of the install, that historical data has to be erased so that the truck can start over with the new DPF.
Really wish I could find that document….

I would have thought once it regened the first time during your trip it would have stayed at 0. Mine would regen if it was close to 40% (which is where it would everytime never went above that towing or not) then it would stay at 0 the rest of the trip no matter how many hours i was towing. I would even let it idle at rest stops for 10 to 20 min cause I didnt wanna shut it down with hot oil and the DPF stilled stayed at 0. As soon as we unhooked and went to the store though p00f it would start climbing. If I was lucky and it would only be at like 25% at the start of the trip it would climb back down to 0 without a regen.

I too don't believe disconnecting the battery would do the trick. Only because the 2nd dealer I had taken mine to could see all the data it collected from before I took it to the first dealer. They do seem to get worse as time goes on mine would regen in as little as 28 miles and that was all highway running it at 70+ mph that time. I intentionally took it on the highway and ran it aggressively after talking to a friend who has 8 duramax co trucks so thought that may help.....not!

 

[DougB]

I would have thought once it regened the first time during your trip it would have stayed at 0. Mine would regen if it was close to 40% (which is where it would everytime never went above that towing or not) then it would stay at 0 the rest of the trip no matter how many hours i was towing. I would even let it idle at rest stops for 10 to 20 min cause I didnt wanna shut it down with hot oil and the DPF stilled stayed at 0. As soon as we unhooked and went to the store though p00f it would start climbing. If I was lucky and it would only be at like 25% at the start of the trip it would climb back down to 0 without a regen.

I too don't believe disconnecting the battery would do the trick. Only because the 2nd dealer I had taken mine to could see all the data it collected from before I took it to the first dealer. They do seem to get worse as time goes on mine would regen in as little as 28 miles and that was all highway running it at 70+ mph that time. I intentionally took it on the highway and ran it aggressively after talking to a friend who has 8 duramax co trucks so thought that may help.....not!

Mine was fine while towing. Passively regened back to nothing on the dash gauge. Don’t recall the iDash number. But once I was done with towing it quickly filled up and regened.

I figured as much that the computers these days wouldn’t have to relearn after a power loss but was hoping there was a chance. Hope Ram is doing something to look into all of this…. @RamCares

Emissions, along with all the tech, are why I bought the extended warranty for first time on any vehicle I’ve ever owned. Didn’t trust it all to last long but didn’t expect issues this quickly.

 

[mhraxo]

Mine was fine while towing. Passively regened back to nothing on the dash gauge. Don’t recall the iDash number. But once I was done with towing it quickly filled up and regened.

I figured as much that the computers these days wouldn’t have to relearn after a power loss but was hoping there was a chance. Hope Ram is doing something to look into all of this…. @RamCares

Emissions, along with all the tech, are why I bought the extended warranty for first time on any vehicle I’ve ever owned. Didn’t trust it all to last long but didn’t expect issues this quickly.

Hopefully you have better luck getting it repaired. The last dealer I took it to was great about it but there hands were ultimately tied by Ram/Stellantis lack of parts and help. They had Stellantis on the phone discussing everything they found and everything I experienced but they have no "real" answer/solution other than they think it maybe the MAFS sensor and they would expedite it but that would be 30/60 days out at this point. They were even thankful that they could try this "solution" with my truck. At that point 30/60 days lead time and your telling me in all of 'merica you guys don't have another truck to be a guinea pig????? I was willing, if you wave payments till its fixed else reset the ck eng light and im leaving right now and pursuing another brand.

 

[TomTom]

I installed the Ag Diesel Solution 60261 and so far it seems to have made the issue both worse and better. DPF fills up faster, and then will passively come down quicker as well. For example, I had a 25 mile commute home tonight. The truck had just finished a regen before I parked so I was working with an empty(ish) DPF (17% per OBD fusion reading). My drive was mostly highway and I drove around 65-76mph. DPF went from 17% to 87% in about 18 miles and then started passively regenning from there. Made it down to about 82% in the next two miles until I got off the highway. From there to home (5miles surface roadway) I got all the way down to 62%. If I really punched the accelerator for even just 5 seconds I could drop the DPF % reading by 1-2% points. It makes no sense to me. Additionally, I believe when I go to start the truck tomorrow the DPF reading will likely be around 30%. I don’t know why this is, but my DPF readings are typically far lower when cold until it reliably is in the 70% range.

None of the readings make sense to me. The DPF can increase 50% in 5-10min which is really frustrating. It feels like unless you are towing or driving 45-60min every time, you aren’t going to get enough passive regen to keep it stable.

Interested to hear if this matches anyone else’s experience. Does anyone know if the 2023 trucks have the same issue? Too soon to tell?

 

[jasmith348]

I can’t really be running it 80-85 around here lol. I picked it up at dealer after they had it for a few days. Was told it went nearly 165 miles before a regen but again they did say that’s not proper either. Anyways. Mechanic said trick for now is keep it under 2000 rpm with this tune that was done during recall and it should go 150 or so between regens. So yeh I’m ok with that while we wait a month or more for the part. That is a guess as well that may fix the issue permanently… nothing concrete. So start it up put my info in gps quick peek at the guages and dpf is at 12%. 1/2 mile down the road. p00f screen says regening UGGGGH. 50 mile drive and it’s at 40% ready to do another regen. Never crossed 1900/2000.
So mad I stopped at another brands dealer I was passing and unloaded it. Done with this. Paid to much for this to be a guessing game experiment as to what will fix it and when. Just so frustrating cause I work with aerospace and if we worked like this ppl would be fired and replaced with competent ones in a heartbeat.

I just dropped my off at the dealer for 4th or 5th time for this issue (not counting several check ins to have CEL cleared or checked). Told them to keep it until they fix it. Luckily I dont need the truck's towing capacity for a couple of months and @RamCares is reimbursing me for a rental. I got to the point I dont want to drive the truck any more until this problem is fixed - it can't be good for the engine, etc. My 5th Ram/Dodge/Chrysler product, never had anywhere near this much problem with one. My local service manager told me this was my problem not his dealerships, so that was a nice touch I thought. Likely my last Ram product. Certainly last time I will ever buy from my local dealsership.

I compiled a list of ideas/thoughts/etc. from this thread hoping maybe that will give the dealership some ideas. They claim that the issue really comes down to new rules/regulations on diesel formulations which allow more "bio" in the bioblend diesel at the pumps and that @RamCares is working on a software update to fix the issue. Who knows. Its truly sad that @RamCares has produced a truck with this many problems.

 

[mhraxo]

I just dropped my off at the dealer for 4th or 5th time for this issue (not counting several check ins to have CEL cleared or checked). Told them to keep it until they fix it. Luckily I dont need the truck's towing capacity for a couple of months and @RamCares is reimbursing me for a rental. I got to the point I dont want to drive the truck any more until this problem is fixed - it can't be good for the engine, etc. My 5th Ram/Dodge/Chrysler product, never had anywhere near this much problem with one. My local service manager told me this was my problem not his dealerships, so that was a nice touch I thought. Likely my last Ram product. Certainly last time I will ever buy from my local dealsership.

I compiled a list of ideas/thoughts/etc. from this thread hoping maybe that will give the dealership some ideas. They claim that the issue really comes down to new rules/regulations on diesel formulations which allow more "bio" in the bioblend diesel at the pumps and that @RamCares is working on a software update to fix the issue. Who knows. Its truly sad that @RamCares has produced a truck with this many problems.

Good luck with it. I owned a 1500 back in 99 for maybe a year and it had trans issues that I ultimately lemon lawed. they worked on it numerous times and had it for 36 days the last time and still couldn't get it right. Then went thru this regen debacle after the recall and that was it. I will never ever ever own another Dodge/Chrysler/Jeep/ Ram product.
I felt the same way as far as what damage is being done to the DPF with all the regens. From what i understand there is a life span to it and if its regening every 30 to 70 miles and not 500 or so in a months time I probably used a years worth of regens and multiply that by how longs this going to take to get fixed.

 

[Brutal_HO]

I just dropped my off at the dealer for 4th or 5th time for this issue (not counting several check ins to have CEL cleared or checked). Told them to keep it until they fix it. Luckily I dont need the truck's towing capacity for a couple of months and @RamCares is reimbursing me for a rental. I got to the point I dont want to drive the truck any more until this problem is fixed - it can't be good for the engine, etc. My 5th Ram/Dodge/Chrysler product, never had anywhere near this much problem with one. My local service manager told me this was my problem not his dealerships, so that was a nice touch I thought. Likely my last Ram product. Certainly last time I will ever buy from my local dealsership.

I compiled a list of ideas/thoughts/etc. from this thread hoping maybe that will give the dealership some ideas. They claim that the issue really comes down to new rules/regulations on diesel formulations which allow more "bio" in the bioblend diesel at the pumps and that @RamCares is working on a software update to fix the issue. Who knows. Its truly sad that @RamCares has produced a truck with this many problems.

Perhaps you're just trying to get their attention by tagging, but just to be clear @RamCares is a customer facing social media team that can often help facilitate and manage a dealer service issue, but they have absolutely nothing whatsoever to do with production of the vehicle or code. I realize you may just be making a point, but another reader is going to see that and potentially make an assumption that RamCares is something it's not.