Regens at alarming rate!

[AH64ID]

its not far off to be fair. i was keeping track but stopped 2 regens ago. i drive 110-120 miles a day all highway at 80mph (Sometimes more) and regen every 24 hours. so its pretty much spot on at this point.

That's the thing, not far off still means it's not accurate. No point in monitoring an inaccurate PID, it's like putting stock in your oil pressure and oil temperature gauges.

If you want to know accurate data you'll have to track it yourself vs rely on inaccurate PID's.

 

[steve49]

My last regen distance on the 24 hour clock was 1023 miles, which is about the range group more or less I see. I've also compared it with the trip meter in the past as well, but seems to me the trip meter showed a little more or less than the gauge did for that particular regen and driving condition. The speedometer, oil pressure, EGT's, etc. etc., everything we monitor with the different brand aftermarket gauges is a computerized function PID, are any of them accurate? So in the end whether 100% accurate or not, but fluctuates in similar patterns up or down under different driving conditions, eventually gives us a monitoring range to tell us how our trucks doing....good or bad. For me the only real important function to monitor is the regen status, so I monitor the 0-100% soot load, 0-24 hour clock, regen on/off, and 0-++++ miles distance between regens, and as long as those functions peak out on the good side is all I need to know!

 

[AH64ID]

My last regen distance on the 24 hour clock was 1023 miles, which is about the range group more or less I see. I've also compared it with the trip meter in the past as well, but seems to me the trip meter showed a little more or less than the gauge did for that particular regen and driving condition. The speedometer, oil pressure, EGT's, etc. etc., everything we monitor with the different brand aftermarket gauges is a computerized function PID, are any of them accurate? So in the end whether 100% accurate or not, but fluctuates in similar patterns up or down under different driving conditions, eventually gives us a monitoring range to tell us how our trucks doing....good or bad. For me the only real important function to monitor is the regen status, so I monitor the 0-100% soot load, 0-24 hour clock, regen on/off, and 0-++++ miles distance between regens, and as long as those functions peak out on the good side is all I need to know!

It shouldn't matter what aftermarket device is reading the PID, the data reported by the ECM is the same. Some are accurate PID's (regen on/off, regen %age, speed, EGT) and some are not (regen distance, regen time, DEF level). So it doesn't matter if something is on the good side or bad side if it's not accurate data, even if it makes you feel better.

Unfortunately we can't blindly trust everything we can get from a PID, or the dash for that matter. It's important to know what data is good and what data isn't.

 

[mbarber84]

It shouldn't matter what aftermarket device is reading the PID, the data reported by the ECM is the same. Some are accurate PID's (regen on/off, regen %age, speed, EGT) and some are not (regen distance, regen time, DEF level). So it doesn't matter if something is on the good side or bad side if it's not accurate data, even if it makes you feel better.

Unfortunately we can't blindly trust everything we can get from a PID, or the dash for that matter. It's important to know what data is good and what data isn't.

Curious, what factor(s) would cause the DPFDIS data coming from the ECM to be “off”? If the ECM is monitoring soot load and time for regen triggers, you would think the data coming out as a result would be relatively reliable. I guess we would first need to know specifically how the ECM calculation determines that value, and like everything else with Ram technical data, getting the answer to that question would probably prove nearly impossible. I’ve yet to uncover a single document from the Ram side of the powertrain that explains the DPF regeneration strategy in the first place.

 

[AH64ID]

Curious, what factor(s) would cause the DPFDIS data coming from the ECM to be “off”? If the ECM is monitoring soot load and time for regen triggers, you would think the data coming out as a result would be relatively reliable. I guess we would first need to know specifically how the ECM calculation determines that value, and like everything else with Ram technical data, getting the answer to that question would probably prove nearly impossible. I’ve yet to uncover a single document from the Ram side of the powertrain that explains the DPF regeneration strategy in the first place.

It sure would be nice if we knew, but the data the PID presents doesn't match anything I'm witnessing and it appears to be the same from what others report on DPFDIS vs actual distance. I would also have thought the data was reliable, but I'm just not seeing it. Last time I looked at DPF time it was 25.5 hours... laughable at best.

I'd be shocked if we ever get anything from Ram on strategy, but it sure would be nice. Until then we'll have to continue to rely on reverse engineering the data we get for accuracy and meaning.

 

[AH64ID]

Drove the truck today and took a peek at DPF AVGD and DPF AVGT.

Distance: 315 miles
Time: 408 minutes (6.8 hours)

My lifetime AVG Distance is 730 and my lifetime average time is 1311 minutes (21.8 hours).

My last 5 regens have been 24 hour based with an average distance of 893 miles (last regen was 1240 miles). I only have 2 regens under the 315 mile reported average (73 miles soot based following a weak stationary regen and 197 miles that was 24 hour based at elk camp). I have only had 1 regen less than 6 hours (the 73 mile soot based one I just mentioned at 4 hours).

My truck has completed 39 active regens. 31 24 hour based, 6 soot based (14.5hr avg time), and 2 were manually initiated stationary de-soots (right before an oil change, but they aren't very effective on this truck unlike my 2018 so I won't be wasting the time/fuel for those again)

There is no rhyme or reason to the data shown via the PIDs. There is no way to average the actual data and get the information shown via the PID.

 

[rauan]

I am half way through this topic and have not read all the posts, but I would like to she what I experienced today.
I have the same problem with frequent regens. I changed oil, fuel filters, ccv filter and air filter. My air filter is incorrect one and I changed it when I received my truck from Texas in Alaska. The new filter is on order and should arrive in a few days or so.
Today, after reading some posts I cleaned up my map sensor with electric contact cleaner. When I put it back I got error messages for MAP sensor and air cooler temperature circuits. Then I removed the sensor again and cleaned it with crc maf cleaner.
I took the truck for a drive and got my dpf filter percentage jumped from 30 to 100 in a minute or so. By the time I arrived to my destination (5-7 miles) the percentage dropped to 80. When I arrived I checked the error code again and it was gone.
I drove back home and my dpf is still at regen and at 40% now.

 

[sourdo]

I am half way through this topic and have not read all the posts, but I would like to she what I experienced today.
I have the same problem with frequent regens. I changed oil, fuel filters, ccv filter and air filter. My air filter is incorrect one and I changed it when I received my truck from Texas in Alaska. The new filter is on order and should arrive in a few days or so.
Today, after reading some posts I cleaned up my map sensor with electric contact cleaner. When I put it back I got error messages for MAP sensor and air cooler temperature circuits. Then I removed the sensor again and cleaned it with crc maf cleaner.
I took the truck for a drive and got my dpf filter percentage jumped from 30 to 100 in a minute or so. By the time I arrived to my destination (5-7 miles) the percentage dropped to 80. When I arrived I checked the error code again and it was gone.
I drove back home and my dpf is still at regen and at 40% now.

I own a 2021 Ram 2500 6.7L Tradesman with over 77,xxx miles. We have tens of thousands of miles towing our RV around.

2 years ago, when doing oil and filters change, I installed a cheap air filter. And right off, while towing too, I started to have soot build up and excess regens, even while towing. Towing always kept the DPF cleared out. And while going up over the continental divide in Wyoming into Jackson Hole, I had the "DPF 100% full, Power reduced, See Dealer" message. Once over the top, luckily for me, my EGT,s were enough to clear out the DPF, and after a bit the Regen restarted and after 60 miles, cleared out the DPF. When I passed the next NAPA, I bought a NAPA air filter, and those issues went away, mostly.

And I think this started a slow but down hill problem of too many regens, but it wasn't an issue until last summer. I think too many short drives, maybe, not sure, but I had another 100 % Full message. With AlfaOBD and a phone, plus the bypass cable, I was able to initiate a stationary regen. Good thing, where we were was 100 miles away from a Ram dealer. But the Regen issues slowly got worse, towing no longer kept the DPF cleared out.

I kept track of regens this last few months, and many cycles were under 100 miles, but not always. I had one interval of 320 miles, this was desert driving, it was 60 miles to town, and in the past that was enough to clear out the DPF. Last April, right after a fresh regen, I drove to a market about 15 miles away. And in 12 miles, my DPF filled up and started another regen. My oil was showing signs of dilution too, aka, the dip stick level was rising. This time I took it to a Ram dealer. They conceded that there was an issue. AFter a month, the replaced the MAF and NOX sensor, and claimed it was fixed. NOT.

The next day we hitched up to our 5th wheel and headed north. And I was still having issues with the DPF filling up. One morning on our trip, I only got 8 miles until the next regen. So, I took the truck to the Ram dealer in Sand Point, Idaho. This time I told the dealer to his face to borescope the DPF, they did, and told me it was face plugged and needed replacement. So $2500 later, I pick up my truck and damnation, in 180 miles, I'm doing another regen.

Man I was effing pissed. HOT as the sun!! So I did a hail mary and did the MAF relearn procedure, I got this on this thread. I got on a flat road, and at 64 MPH in 4th gear kept my RPM,s at 2600 or so with Cruise control, followed the procedure to the T. About 15 miles per leg. Find a road with no hills and no stops.

And just like that, it seems to be fixed. So far, I have over 625 miles since my last regen. The DPF is up around 85% full, but this seems perfectly normal now. All through this issue, my truck always ran great, mileage was and still is wonderful.

Anyone who has used the wrong air filter, and has regen issues, should try this procedure first after installing the correct air filter. I went too long with this issue, and it finally caught up to me, and corked the DPF.

 

[rauan]

Thank you for your response! I will try it as soon as I get my air filter delivered.

Interesting that your DPF filter is at 85%. I thought that it is forced to regen when it reaches 40% or so.

 

[sourdo]

Thank you for your response! I will try it as soon as I get my air filter delivered.

Interesting that your DPF filter is at 85%. I thought that it is forced to regen when it reaches 40% or so.

I use a OBDlink MX+ to monitor the soot level.

When the soot level hits 100%, a regen starts. At around 40% the regen stops. This is much better that the dash DPF gauge.

 

[mboudoin]

I use a OBDlink MX+ to monitor the soot level.

When the soot level hits 100%, a regen starts. At around 40% the regen stops. This is much better that the dash DPF gauge.

Which PID's are you using? Are you using the OBDLINK App?

 

[AH64ID]

I use a OBDlink MX+ to monitor the soot level.

When the soot level hits 100%, a regen starts. At around 40% the regen stops. This is much better that the dash DPF gauge.

Are you monitoring soot level or regen %?

 

[sourdo]

I guess I won't respond with my phone anymore!

Anyway, see the picture. The "Normalized trigger for DPF Regen" is the one to watch, plus the EGT,s are handy too. 650 F and up the DPF will start to clear out. EGT 2 and 3 are on both ends of the DPF.

 

[oledirteh]

my 24 has almost 27k on it. when i first got it it did a regen before 24 hours. ever since it has consistently ran 24 hr regens. i time it with my trip and its been spot on. the past month my dpf gauge after regen will build up fast, and my pillar gauge will go from 20 to 70+ and then work down to the 60's, then up to the 80's. last regen was at 10 hours. when i left the house this morning it was at 77. after 55 miles it dropped back to 57%. so dunno whats going on. just monitoring it. nothings changed. same fuel station, same def fluid, using archoil since day one.

 

[sourdo]

my 24 has almost 27k on it. when i first got it it did a regen before 24 hours. ever since it has consistently ran 24 hr regens. i time it with my trip and its been spot on. the past month my dpf gauge after regen will build up fast, and my pillar gauge will go from 20 to 70+ and then work down to the 60's, then up to the 80's. last regen was at 10 hours. when i left the house this morning it was at 77. after 55 miles it dropped back to 57%. so dunno whats going on. just monitoring it. nothings changed. same fuel station, same def fluid, using archoil since day one.

That sounds normal, my soot level goes up and down too. Longer hills or driving 65-70 mph it will drop my soot, that is normal. Hills and steady freeway driving helps. When the engine is cold, it always shows a low % that builds up to where it was the day before. When the DPF clears on its own, is called "passive" regeneration, when the EGT,s are hot enough to cook off soot.

As my DPF slowly plugged up this last year, the "bottom" of the % was around 52-53% after a regen. I was averaging around 150 mile intervals, but some intervals were only a few miles. With a new DPF, I now hit 40% or so now after the last regen, and it was very quick. Where we are in Libby, Montana, we bought a cheap car to drive around, so I'm not driving my truck too much right now.

IF you start getting frequent regens under 100 mile intervals, then you can worry. For now, drive and enjoy your truck. But if it happens once in a while is just doing what it should be doing.

Do you tow an RV around? Towing our 5th wheel always kept the DPF cleared out, until that moment of being a cheap dickhead and buying some no name on sale cheap $40 air filter made of chinesium two years ago, and started a chain reaction.

I am a believer now, nothing but Mopar air filters from the dealer. They cost more, but as the saying goes; "Cheap Charley pays twice(or more!)"

Do understand that the DPF has a life span, and depending on how you use your truck will dictate how long it will last. Watch out for prolonged short driving.

I use Power Sports Kleen additive regularly.

 

[oledirteh]

That sounds normal, my soot level goes up and down too. Longer hills or driving 65-70 mph it will drop my soot, that is normal. Hills and steady freeway driving helps. When the engine is cold, it always shows a low % that builds up to where it was the day before. When the DPF clears on its own, is called "passive" regeneration, when the EGT,s are hot enough to cook off soot.

As my DPF slowly plugged up this last year, the "bottom" of the % was around 52-53% after a regen. I was averaging around 150 mile intervals, but some intervals were only a few miles. With a new DPF, I now hit 40% or so now after the last regen, and it was very quick. Where we are in Libby, Montana, we bought a cheap car to drive around, so I'm not driving my truck too much right now.

IF you start getting frequent regens under 100 mile intervals, then you can worry. For now, drive and enjoy your truck. But if it happens once in a while is just doing what it should be doing.

Do you tow an RV around? Towing our 5th wheel always kept the DPF cleared out, until that moment of being a cheap dickhead and buying some no name on sale cheap $40 air filter made of chinesium two years ago, and started a chain reaction.

I am a believer now, nothing but Mopar air filters from the dealer. They cost more, but as the saying goes; "Cheap Charley pays twice(or more!)"

Do understand that the DPF has a life span, and depending on how you use your truck will dictate how long it will last. Watch out for prolonged short driving.

I use Power Sports Kleen additive regularly.

yup, i get it 100%. this is my 4th 6.7, 3rd since 2018. i put 120 miles a day on my truck and tow a 40ft toy hauler, and a 20 foot car trailer. average speeds at 75-80mph.

pretty good and managing the diesel and dpf. my main thing is for 26k miles, 0% on the dpf gauge, then now its running high. kinda just a observation more then anything. in reality ive never had a dpf issue in my 2018, 2021, and so far the 24. im not worried as i have a 120k warranty on the entire truck including dpf.

 

[sourdo]

yup, i get it 100%. this is my 4th 6.7, 3rd since 2018. i put 120 miles a day on my truck and tow a 40ft toy hauler, and a 20 foot car trailer. average speeds at 75-80mph.

pretty good and managing the diesel and dpf. my main thing is for 26k miles, 0% on the dpf gauge, then now its running high. kinda just a observation more then anything. in reality ive never had a dpf issue in my 2018, 2021, and so far the 24. im not worried as i have a 120k warranty on the entire truck including dpf.

I bought the Mopar extended warranty for my '21, good for 7 years/100000 miles. Covers everything BUT the DPF. That was a "meh" moment.

But now the newer trucks come with a much better warranty for the DPF. Supposedly my new DPF is a better improved part. I will see next month when we hook up and hit the road.

Most of my miles are towing miles, since selling out and leaving Alaska 3 years ago, we are full time RV,ers for the time being.

 

[Trash Panda]

I bought the Mopar extended warranty for my '21, good for 7 years/100000 miles. Covers everything BUT the DPF. That was a "meh" moment.

But now the newer trucks come with a much better warranty for the DPF. Supposedly my new DPF is a better improved part. I will see next month when we hook up and hit the road.

Most of my miles are towing miles, since selling out and leaving Alaska 3 years ago, we are full time RV,ers for the time being.

Kind of ironic that the most problematic parts are the ones with the shortest warranty.

With all of the government intervention requiring these very expensive devices, you’d like to think that the warranty would match the rest of the vehicle.

 

[Deltron]

But now the newer trucks come with a much better warranty for the DPF. Supposedly my new DPF is a better improved part. I will see next month when we hook up and hit the road.

Isn't it still 5/50k for Federal trucks?

 

[rauan]

I got this message yesterday and after that truck is even not trying to do a regen. The DPF filter is at 100%. The filter that I ordered should arrive next week.

Is there anything I can do to get regen started?