Automatic Regen too often

[56ram2500]

Short trips around town. Occasionally a highway trip. Tow 10k trailer 4-5 times a year. 37,227 for 29.5mph avg. 25% idle time. I don’t let it idle but cumulatively it is what it is.

View attachment 90894

Here’s the oil analyses from Horizon. Not good. Only 7k on this oil change. I didn't use them for the last oil change so there’s a gap in the history listed.

View attachment 90893

FYI, Rotella T-6 does not hold up very well with fuel dilution once it get over 4.5%, I saw this with my engine when I used it, based on my experience with my 22 you need to run this truck at least 45-50% hwy speeds at or above 50 MPH and not continuous stop go city traffic, that stop & go is good for one thing constant Regens that put fuel in to your oil, I also an hope you don't have a screwed, plugged up DPF any time soon... I also learned with mine is that once a month I take it on a 3+ hour trip, with a minimum of 1.5 hr non stop driving on the hwy to help heat up the DPF that in turn helps burn the soot... BTW my monthly drive is not towing or with a load in the bed, at least for me it works well. Oh I also use Archoil products 6400d & 6500 that help keep DPF soot low an helps keep DPF cleaner.... Oh do your best not to use diesel that has more than 5% Bio aka B5.....

 

[Andrew2019]

I find it highly unlikely that you’d saturate a CCV filter in 7500 miles.

If you’re not running with excessively high oil levels, and aren’t suffering from weapons-grade blow by, I’d just reset the message and move on with life.

Thank you. I reset the message. I’ll post back if the message comes back.

 

[Thorvald]

Just wanted to report on my progress. I’m up around 140,000km now and about mid summer she started to regen a little too often. First warning sign was the PF_REGEN_AVGT (Time between regeneration cycles) was no longer getting above 1400, which told me I was regening well before the 24 hr forced regen. This didn’t make much sense as we toy the RV most of the summer so it gets lots of hard work but just wasn’t enough to burn it off.

Once it got below 400 minutes between regens I was having a regen once a tank, this was not good but it seemed to be completing without issue.

Now late fall I finally got the dreaded “exhaust system regeneration in progress continue driving” which told me that the previous regeneration cycles were not successful in cleaning the filter. So I decided to beat the living snot out of it and drove around in a lower gear to keep the RPM well above 2000 and ensure the exhaust temperatures stayed well above 500 C. Keeping it in the lower gear and driving around side roads with little traffic really helped and kept the exhaust temperatures quite high constantly. When it was finished, the filter percentage was around 7%, I haven’t seen that number in years. Even better I had just put in a dose of Archoil 6400 the day before on fill up so that may have helped.

When it was finished, I drove straight to the dealer and picked up a brand new air filter and funny enough. The parts guy was in a talkative mood and we started talking about the filters etc. and he said they’ve been having fits with various trucks due to air intake issues, causing DPF filter problems. He said they even had trucks where there were plastic flashings still in the intake tract and once they clean those out the problems went away. This is another reason I won’t (yet) go to any aftermarket intake stuff (Banks looking at you) because this setup in these trucks are too damn sensitive to filters, intakes, leaks, whatever.

Got home, swapped the air filter immediately. It wasn’t terribly dirty but tossed it anyways. I have a theory that once the average time can no longer hit over 1000 minutes consistently (well over 1400 really) the filter needs to be replaced. Will monitor this going forward.

Now over a week later, short trip driving only, percentage on start is well under 20% and stays below 50%, happy truck again. Crossing fingers this stays.

I suspect the Average time will shoot right back up to over 1400 minutes again (once I hit the timed 24hr regen cycle), looking forward to seeing that again. I know some here in the forum don’t trust that number but it’s been rock solid for me and lets me know if I’ve been reaching timed regens or not. It was also an excellent indicator of when the filter was not getting cleaned out properly causing excessive cycles.

Now I just wish I could setup the CTS3 to auto-log whenever the regen cycle starts so I’d always have data but I can’t seem to set a trigger for that PID as when it goes to 1.00 in the log it shows “On” on the display but the trigger only allows numbers and setting it to 1 doesn’t work (yet). Future project.

 

[AH64ID]

Just wanted to report on my progress. I’m up around 140,000km now and about mid summer she started to regen a little too often. First warning sign was the PF_REGEN_AVGT (Time between regeneration cycles) was no longer getting above 1400, which told me I was regening well before the 24 hr forced regen. This didn’t make much sense as we toy the RV most of the summer so it gets lots of hard work but just wasn’t enough to burn it off.

Once it got below 400 minutes between regens I was having a regen once a tank, this was not good but it seemed to be completing without issue.

Now late fall I finally got the dreaded “exhaust system regeneration in progress continue driving” which told me that the previous regeneration cycles were not successful in cleaning the filter. So I decided to beat the living snot out of it and drove around in a lower gear to keep the RPM well above 2000 and ensure the exhaust temperatures stayed well above 500 C. Keeping it in the lower gear and driving around side roads with little traffic really helped and kept the exhaust temperatures quite high constantly. When it was finished, the filter percentage was around 7%, I haven’t seen that number in years. Even better I had just put in a dose of Archoil 6400 the day before on fill up so that may have helped.

When it was finished, I drove straight to the dealer and picked up a brand new air filter and funny enough. The parts guy was in a talkative mood and we started talking about the filters etc. and he said they’ve been having fits with various trucks due to air intake issues, causing DPF filter problems. He said they even had trucks where there were plastic flashings still in the intake tract and once they clean those out the problems went away. This is another reason I won’t (yet) go to any aftermarket intake stuff (Banks looking at you) because this setup in these trucks are too damn sensitive to filters, intakes, leaks, whatever.

Got home, swapped the air filter immediately. It wasn’t terribly dirty but tossed it anyways. I have a theory that once the average time can no longer hit over 1000 minutes consistently (well over 1400 really) the filter needs to be replaced. Will monitor this going forward.

Now over a week later, short trip driving only, percentage on start is well under 20% and stays below 50%, happy truck again. Crossing fingers this stays.

I suspect the Average time will shoot right back up to over 1400 minutes again (once I hit the timed 24hr regen cycle), looking forward to seeing that again. I know some here in the forum don’t trust that number but it’s been rock solid for me and lets me know if I’ve been reaching timed regens or not. It was also an excellent indicator of when the filter was not getting cleaned out properly causing excessive cycles.

Now I just wish I could setup the CTS3 to auto-log whenever the regen cycle starts so I’d always have data but I can’t seem to set a trigger for that PID as when it goes to 1.00 in the log it shows “On” on the display but the trigger only allows numbers and setting it to 1 doesn’t work (yet). Future project.

FWIW the PIDs for regen average time and average miles aren’t accurate. There is no real rhyme or reason to their output data, I’d find another way to track your regens.

You might think it’s rock solid but I can guarantee if you track your regens another way you will see that it’s not. This isn’t a works on one rig and not another, it’s bad programming by Ram.

I’ve had the average time tell me over 25 hours and we’ll under 22, neither of which was even close to actual nor possible with the reading over 24 hours. I’ve seen a decrease after 24 hour regions and increase after short shift based regions. There really is no good rhyme or reason to the output.

I also not just a Ram thing with the inaccurate PID data as my MB Sprinters data is also inaccurate.

 

[DougB]

Short trips around town. Occasionally a highway trip. Tow 10k trailer 4-5 times a year. 37,227 for 29.5mph avg. 25% idle time. I don’t let it idle but cumulatively it is what it is.

View attachment 90894

Here’s the oil analyses from Horizon. Not good. Only 7k on this oil change. I didn't use them for the last oil change so there’s a gap in the history listed.

View attachment 90893

Picked up the truck on Friday from the dealer. Below is what they did/wrote on the service ticket. Basically, they are going thru the checklist based on what Ram engineering has told them to do. Verify air filter and MAF. Mike had the German MaF so it was replaced. Air filter was fine as I use Mopar 53034051AB. Tech drove it maybe 5 miles and claimed it was fine. Service writer said to just drive it normally and let them know. I think he’s seen enough of these to know I’ll be back.

I sent him a copy of the oil analysis to document it in the truck's file. He talked with the tech about it and nothing was really done regarding it. I told him it is my opinion it's directly related to the regen frequency and that I would change it right away and keep an eye on it. He understood and confirmed that it's documented that it was not overfilled with oil but high due to fuel dilution.

I’ll drive it my normal routine and see how it does. Just from the dealer to home, my iDash went from 42 to 58 on soot load, which is pretty typical for that short of a run. I expect it to go into regen by Friday with my standard daily commutes. Hoping im wrong and the MAF does some thing but will see.

Changed the oil this weekend. Boy, that was some THIN stuff!! I’ll keep an eye on the level and pull some samples after a certain number of regens to see if I can ascertain a relationship between regens and dilution. Also, changed fuel filters as was down to 21% on the dash meter and it was time for their annual replacement anyway.

Speaking of oil analysis, Horizon was quick. I am still waiting on Blackstone. I think I’m done using Blackstone.

Click to enlarge:

 

[Ostracize]

Picked up the truck on Friday from the dealer. Below is what they did/wrote on the service ticket. Basically, they are going thru the checklist based on what Ram engineering has told them to do. Verify air filter and MAF. Mike had the German MaF so it was replaced. Air filter was fine as I use Mopar 53034051AB. Tech drove it maybe 5 miles and claimed it was fine. Service writer said to just drive it normally and let them know. I think he’s seen enough of these to know I’ll be back.

I sent him a copy of the oil analysis to document it in the truck's file. He talked with the tech about it and nothing was really done regarding it. I told him it is my opinion it's directly related to the regen frequency and that I would change it right away and keep an eye on it. He understood and confirmed that it's documented that it was not overfilled with oil but high due to fuel dilution.

I’ll drive it my normal routine and see how it does. Just from the dealer to home, my iDash went from 42 to 58 on soot load, which is pretty typical for that short of a run. I expect it to go into regen by Friday with my standard daily commutes. Hoping im wrong and the MAF does some thing but will see.

Changed the oil this weekend. Boy, that was some THIN stuff!! I’ll keep an eye on the level and pull some samples after a certain number of regens to see if I can ascertain a relationship between regens and dilution. Also, changed fuel filters as was down to 21% on the dash meter and it was time for their annual replacement anyway.

Speaking of oil analysis, Horizon was quick. I am still waiting on Blackstone. I think I’m done using Blackstone.

Click to enlarge:
View attachment 91391

The reset injector compensation values is intriguing, someone can correct me, but my understanding is injector compensation is only to be utilized when replacing injectors to set and balance flow rates... I'm assuming you have OE injectors so I'm not sure why they would have any compensation value to be reset. Maybe I'm missing something.

 

[DougB]

The reset injector compensation values is intriguing, someone can correct me, but my understanding is injector compensation is only to be utilized when replacing injectors to set and balance flow rates... I'm assuming you have OE injectors so I'm not sure why they would have any compensation value to be reset. Maybe I'm missing something.

I was wondering that myself, well not to that detail, but still had not read about that being something they did. Yes, OE everything on the engine. Figure it's just on the list from Ram for techs to do. Shot gun approach by Ram engineering.

 

[AH64ID]

Picked up the truck on Friday from the dealer. Below is what they did/wrote on the service ticket. Basically, they are going thru the checklist based on what Ram engineering has told them to do. Verify air filter and MAF. Mike had the German MaF so it was replaced. Air filter was fine as I use Mopar 53034051AB. Tech drove it maybe 5 miles and claimed it was fine. Service writer said to just drive it normally and let them know. I think he’s seen enough of these to know I’ll be back.

I sent him a copy of the oil analysis to document it in the truck's file. He talked with the tech about it and nothing was really done regarding it. I told him it is my opinion it's directly related to the regen frequency and that I would change it right away and keep an eye on it. He understood and confirmed that it's documented that it was not overfilled with oil but high due to fuel dilution.

I’ll drive it my normal routine and see how it does. Just from the dealer to home, my iDash went from 42 to 58 on soot load, which is pretty typical for that short of a run. I expect it to go into regen by Friday with my standard daily commutes. Hoping im wrong and the MAF does some thing but will see.

Changed the oil this weekend. Boy, that was some THIN stuff!! I’ll keep an eye on the level and pull some samples after a certain number of regens to see if I can ascertain a relationship between regens and dilution. Also, changed fuel filters as was down to 21% on the dash meter and it was time for their annual replacement anyway.

Speaking of oil analysis, Horizon was quick. I am still waiting on Blackstone. I think I’m done using Blackstone.

Click to enlarge:
View attachment 91391

That’s not anywhere near the proper procedure for the MAF relearn, what a joke.

@mbarber84 do you have the relearn document? I couldn’t find it with a search.

 

[mbarber84]

That’s not anywhere near the proper procedure for the MAF relearn, what a joke.

@mbarber84 do you have the relearn document? I couldn’t find it with a search.

Yep! See below:

 

[AH64ID]

Yep! See below:
View attachment 91442View attachment 91443

Thanks!!

 

[DougB]

Yep! See below:
View attachment 91442View attachment 91443

Yeah, I knew this and have tried it before but didn't notice any difference. No place around here flat so you can drive it like that. I wondered if running it disconnected for 10 minutes is some new way? #FIIK

I would think you'd want to make resetting tables to default values MUCH easier than having to drive a customer vehicle for 30 minutes with very strict criteria simply to reset tables. But hey, there are many reasons why I didn't keep going down the software road in college. Maybe not being able to think of ridiculous plans like that was one of them. lol

Next time I bring it in, I'll get a copy of this and ask if they checked the turbo and CCV since the oil was high this last time due to fuel dilution, not overfilling of oil.

 

[Thorvald]

It’s going to be happy dance next week, truck is right on schedule for a 24hr Timed Regen for the first time in half a year.

Amazing how the grid heater kills the battery until the Alternator kicks back in.

 

[rsday75]

Good morning,
Been following this thread for some time.
My 2019 truck has been doing a regen every 100-125 miles with mixed driving. I can get to 300ish miles with all highway at 70+ mph. The only way I get any longer is with my 15K 5th wheel attached. Not exactly practical for every trip.
I got the p2459 early on in ownership.
Dealer flashed the ECU a couple times & replaced an “exhaust” sensor. Sorry, that is all the paperwork stated. They had a STAR case opened. Basically said it is fixed if there is no code.
I’m now out of warranty. Regens have been happening more often.
I tried PPEI for intact tuning. Regens at same frequency, maybe a bit sooner with tuning, but close to stock frequency.
I was hoping someone would have discovered a fix. I need to check which MAF I have and may try the new, non-oiled air filer part.
I have a trusted mechanic, but he isn’t a diesel specific guy. I may have him give it a look as things are on my dime now.
I guess I could go the delete route. Not looking for huge power gains or smoke. I just want the truck to run correctly. Hard to trust most of the delete tuning available now. Lots of hacks out there. That is why I haven’t explored deleting, but there near constant regens may force my hand.
Too bad, I like the truck otherwise.
If anyone has any other thoughts or things to check, I’m all ears.
Thanks!

 

[CaptainMike]

Good morning,
Been following this thread for some time.
My 2019 truck has been doing a regen every 100-125 miles with mixed driving. I can get to 300ish miles with all highway at 70+ mph. The only way I get any longer is with my 15K 5th wheel attached. Not exactly practical for every trip.
I got the p2459 early on in ownership.
D

I did the drill with my '22 and they finally replaced the DPF. The truck now seems to be (dis)-functioning as designed, but I monitor the soot load closely and drive accordingly. I no longer have frequent regens, but it still sucks and it's a poor design. If there was a reliable and affordable delete I'd do it in the blink of an eye. There isn't so I'll be unloading it in the near future. I'm just waiting to see if there will be an easing of emission standards in the near term.

 

[HarryN]

Good morning,
Been following this thread for some time.
My 2019 truck has been doing a regen every 100-125 miles with mixed driving. I can get to 300ish miles with all highway at 70+ mph. The only way I get any longer is with my 15K 5th wheel attached. Not exactly practical for every trip.
I got the p2459 early on in ownership.
Dealer flashed the ECU a couple times & replaced an “exhaust” sensor. Sorry, that is all the paperwork stated. They had a STAR case opened. Basically said it is fixed if there is no code.
I’m now out of warranty. Regens have been happening more often.
I tried PPEI for intact tuning. Regens at same frequency, maybe a bit sooner with tuning, but close to stock frequency.
I was hoping someone would have discovered a fix. I need to check which MAF I have and may try the new, non-oiled air filer part.
I have a trusted mechanic, but he isn’t a diesel specific guy. I may have him give it a look as things are on my dime now.
I guess I could go the delete route. Not looking for huge power gains or smoke. I just want the truck to run correctly. Hard to trust most of the delete tuning available now. Lots of hacks out there. That is why I haven’t explored deleting, but there near constant regens may force my hand.
Too bad, I like the truck otherwise.
If anyone has any other thoughts or things to check, I’m all ears.
Thanks!

The regens are running because the system thinks that there is a particle build up.

This could be either because there is, or the sensors thing there is.

One approach is to do a very thorough intake / exhaust / recirc pathway clean out by taking it all apart, cleaning and putting it back together. Using the best fuel and fuel additives that are possible. Oils that are the best possible for that type of use.

Another is to go through the fuse swap / replacement idea, look for minor glitches in the canbus hub, really dig in there.

See about cleaning out or swapping the particle filter for a new one.

___________

Just as an example - I have purchased a few old BMWs - just normal ones. One of their weak areas is all of that rubber under there is just not rated for US summers. So the first step is to replace it all at once vs goofing around with once piece at a time.

 

[jon1965]

I was having the same issue with frequent regens too. I have a 24 3500 6.7 HO with 42,000 on the clock. Mine would regen anywhere from 200mi - 400mi between regens ever since it was new. Never had a code but knew that wasn’t right. Brought it to the stealership multiple times and finally they put a Mopar air filter in it as I was using Fram filters. they told me to drive it and let them know. It went 1,000 miles until it went through a regen cycle but after that first regen it went back to the short regen cycle.

After pouring through tons of forums I read somewhere about this issue possibly being caused by over filling oil/delusion. So my next oil change I only filled the oil to half way between add and full on the dipstick. Walla that was the ticket!!! I’ve driven 10,000 mi since and it hasn’t regen once due to soot load only the 24hr regen. And when it does regen they are short because most of the time there is no soot load on the gauge and if there is its only been 10%(first segment) on the gauge. I do mostly mixed driving and seldom tow.

 

[securityguy]

I was having the same issue with frequent regens too. I have a 24 3500 6.7 HO with 42,000 on the clock. Mine would regen anywhere from 200mi - 400mi between regens ever since it was new. Never had a code but knew that wasn’t right. Brought it to the stealership multiple times and finally they put a Mopar air filter in it as I was using Fram filters. they told me to drive it and let them know. It went 1,000 miles until it went through a regen cycle but after that first regen it went back to the short regen cycle.

After pouring through tons of forums I read somewhere about this issue possibly being caused by over filling oil/delusion. So my next oil change I only filled the oil to half way between add and full on the dipstick. Walla that was the ticket!!! I’ve driven 10,000 mi since and it hasn’t regen once due to soot load only the 24hr regen. And when it does regen they are short because most of the time there is no soot load on the gauge and if there is its only been 10%(first segment) on the gauge. I do mostly mixed driving and seldom tow.

You drove 10K miles and only one regen??? Something is seriously wrong!!!

 

[OLEJOE]

You drove 10K miles and only one regen??? Something is seriously wrong!!!

He said he had only had timed regens for the last 10,000 miles.

This is how rumors get started.

 

[22PearlRamMegaHD]

I was having the same issue with frequent regens too. I have a 24 3500 6.7 HO with 42,000 on the clock. Mine would regen anywhere from 200mi - 400mi between regens ever since it was new. Never had a code but knew that wasn’t right. Brought it to the stealership multiple times and finally they put a Mopar air filter in it as I was using Fram filters. they told me to drive it and let them know. It went 1,000 miles until it went through a regen cycle but after that first regen it went back to the short regen cycle.

After pouring through tons of forums I read somewhere about this issue possibly being caused by over filling oil/delusion. So my next oil change I only filled the oil to half way between add and full on the dipstick. Walla that was the ticket!!! I’ve driven 10,000 mi since and it hasn’t regen once due to soot load only the 24hr regen. And when it does regen they are short because most of the time there is no soot load on the gauge and if there is its only been 10%(first segment) on the gauge. I do mostly mixed driving and seldom tow.

I've had similar issues as many have rehashed on the thread. 28k miles since Ram replaced the DPF (after many many months in their possession and thousands of dollars in other attempted fixes). With the exception of 2x, I've had nothing but 24 hour regens since. With all that said, oil level wouldn't surprise me, and even moreso if there is an issue that leads to frequent regens outside the oil level which then causes that level to rise which creates a death spiral. Once the level is high, it cascades into more and more regens.

I had 12% fuel dilution and no check engine lights with many many documented 20 mile or less regen frequencies (dated photos and spreadsheet) before Ram even agreed to look at it. It took a ramcares rep that actually cared and "forced" a dealership to look at it. In reality i think he forced Rams hand

 

[jon1965]

You drove 10K miles and only one regen??? Something is seriously wrong!!!

I’ve had multiple regen but they were triggered by drive time not soot load.