Automatic Regen failure

[392heminut]

Automatic regen has failed twice within 3 months now on my 2022 Ram 3500. Both times it started and within 5 minutes shut off and showed that my DPF was full and I had reduced power. The check engine light is also on. Both times, when it shut off the DPF gauge showed less than half full but within minutes went to full! The first time I was 800 miles from home and had to take it to a local dealer for a forced regen. Of course it was just out of the 50K emissions warranty (approx. 56K miles on the truck) so it cost me $300. I have an appointment with my dealership for this time on Monday morning to do a forced regen again. My previous Ram, a 2020 3500, had to have the DPF replaced at about 45K miles which was fortunately covered by the emissions warranty. I'm starting to get pretty soured on Ram diesels!

 

[Billet Bee]

Automatic regen has failed twice within 3 months now on my 2022 Ram 3500. Both times it started and within 5 minutes shut off and showed that my DPF was full and I had reduced power. The check engine light is also on. Both times, when it shut off the DPF gauge showed less than half full but within minutes went to full! The first time I was 800 miles from home and had to take it to a local dealer for a forced regen. Of course it was just out of the 50K emissions warranty (approx. 56K miles on the truck) so it cost me $300. I have an appointment with my dealership for this time on Monday morning to do a forced regen again. My previous Ram, a 2020 3500, had to have the DPF replaced at about 45K miles which was fortunately covered by the emissions warranty. I'm starting to get pretty soured on Ram diesels!

Did they ever give you any indication of why the 2020 3500 had to have the dpf replaced, I mean there had to be a reason it failed so early? I'm asking because I've got a 2020 3500

 

[06 Dodge]

Automatic regen has failed twice within 3 months now on my 2022 Ram 3500. Both times it started and within 5 minutes shut off and showed that my DPF was full and I had reduced power. The check engine light is also on. Both times, when it shut off the DPF gauge showed less than half full but within minutes went to full! The first time I was 800 miles from home and had to take it to a local dealer for a forced regen. Of course it was just out of the 50K emissions warranty (approx. 56K miles on the truck) so it cost me $300. I have an appointment with my dealership for this time on Monday morning to do a forced regen again. My previous Ram, a 2020 3500, had to have the DPF replaced at about 45K miles which was fortunately covered by the emissions warranty. I'm starting to get pretty soured on Ram diesels!

If you had Alfa-Obd, a security by pass cable from Kaodtech along with a OBD reader you could do your own Forced regens, as for frequent regens what type of Bio diesel if any are you using, any thing higher than B-5 can be a pain for your DPF,, what type of driving to you do as mostly city stop go driving is very hard on the emission system, these 2019+ engines need to see more Hwy time and speeds then the 2018 and older engines. I also learned to use Archoil fuel additives, I use the 6400d system cleaner along with their 6500 in every tank to help keep my DPF cleaner, I have also read that Pittsburg fuel catalyst is also great but its not cheap either...

 

[392heminut]

Did they ever give you any indication of why the 2020 3500 had to have the dpf replaced, I mean there had to be a reason it failed so early? I'm asking because I've got a 2020 3500

No, they never said except that it was clogged. I had regen issues with it all the way up to it being replaced. It would very frequently kick into regen, a lot more than it should have according to the service manager.

 

[392heminut]

If you had Alfa-Obd, a security by pass cable from Kaodtech along with a OBD reader you could do your own Forced regens, as for frequent regens what type of Bio diesel if any are you using, any thing higher than B-5 can be a pain for your DPF,, what type of driving to you do as mostly city stop go driving is very hard on the emission system, these 2019+ engines need to see more Hwy time and speeds then the 2018 and older engines. I also learned to use Archoil fuel additives, I use the 6400d system cleaner along with their 6500 in every tank to help keep my DPF cleaner, I have also read that Pittsburg fuel catalyst is also great but its not cheap either...

The Koadtech cables show out of stock, no help there. I have never ran any bio diesel in my truck, and I frequently pull a 14K lb 5th wheel RV although I do use the truck around town. When it did this the first time I had just put 800 highway miles on it (not towing) and the DPF showed empty all through the trip. I will try using the Archoil additives after getting the forced regen tomorrow. If it continues to be an issue the truck will loose some weight!

 

[nlambert182]

How do you use the truck? Are you only making short trips, or do you frequently tow heavy with it for extended periods of time? Granted, the DPF shouldn't be clogging that early on but if you were to have a combo of bad fuel and granny trips it could happen.

By the way, it doesn't matter if you drive a Ram, GM, or Ford. Every diesel suffers from the exact same emissions issues. You have to work these things hard and run good fuel to keep the emissions systems happy.

You're running some amount of bio-diesel in the truck. There's no way around it. While the EPA allows government entities to use a B2 (2%) biodiesel blend, the EPA requires either a B5 or B6 biodiesel blend for commercially sold diesel. B5 is up to 5%, and B6 is 6%-20%. It's station dependent. Check what you're getting.

 

[mtnrider]

Are you using genuine mopar air filters in the truck? Aftermarket air filters have been known to cause regen issues with the newer trucks.


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[06 Dodge]

The Koadtech cables show out of stock, no help there. I have never ran any bio diesel in my truck, and I frequently pull a 14K lb 5th wheel RV although I do use the truck around town. When it did this the first time I had just put 800 highway miles on it (not towing) and the DPF showed empty all through the trip. I will try using the Archoil additives after getting the forced regen tomorrow. If it continues to be an issue the truck will loose some weight!

Did you fill out the forum with your email for them to let you know when it was back in stock? When I went to buy mine it was out of stock, filled out forum to let me know when it was available, got an email within a week, but its that time of the year so it may take a bit longer to get them back in stock, you need to let them know you want one.... FYI your burning a minimum of 5% Bio diesel without knowing it, it could be higher then 5% by now as the below info is from 2012 for NM diesel fuel:

All diesel fuel sold to state agencies, political subdivisions of the state, and public schools for use in on-road motor vehicles must contain at least 5% biodiesel (B5). After July 1, 2012, all diesel fuel sold to consumers for use in on-road motor vehicles must contain at least B5. The New Mexico Department of Agriculture and the Energy, Minerals, and Natural Resources Department may suspend these requirements for up to six months if there are insufficient amounts of biodiesel available or if the price of biodiesel significantly exceeds the price of diesel fuel for at least two months. (Reference New Mexico Statutes 57-19-28 and 57-19-29)

 

[jejb]

You're running some amount of bio-diesel in the truck. There's no way around it. While the EPA allows government entities to use a B2 (2%) biodiesel blend, the EPA requires either a B5 or B6 biodiesel blend for commercially sold diesel.

Arkansas does not require bio-diesel in non-government use fuels. So this apparently varies by state.

When I had my truck in Wisc for several weeks last summer, I had to feed it bio-diesel and use it a fair amount in non-towing use. It gave me fits with regen's. Seems all cleared up now with some good tows here in the Ozarks.

 

[392heminut]

Are you using genuine mopar air filters in the truck? Aftermarket air filters have been known to cause regen issues with the newer trucks.


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This question came up at the dealership in Kansas where I had to have the first forced regen done and yes. It's never had anything but Mopar filters in it.

 

[06 Dodge]

This question came up at the dealership in Kansas where I had to have the first forced regen done and yes. It's never had anything but Mopar filters in it.

Ok, but is it the Correct Mopar Air filter being they list different air filters for different years? FYI they have had problems with Mopar air filters that have glue strips in the 2019+ 6.7 engines, to be safe use the Fleetguard/Cummins AF27684 air filter instead of Mopar air filter... BTW the Fleetguard unlike Mopar has not had to make a different air filter for different years of the 6.7, the AF27684 fits all 6.7l Cummins engines from 2007.5 to 2026 unlike Mopar that once again has to make a different air filter for the 2025 & 2026 Cummins engines where Fleetguard does not. FYI don't let some dealer say you can use Fleetguard being Fleetguard is a Cummins brand and there air filters come in every 6.7l Cummins engine Ram buys...

 

[392heminut]

Ok, but is it the Correct Mopar Air filter being they list different air filters for different years? FYI they have had problems with Mopar air filters that have glue strips in the 2019+ 6.7 engines, to be safe use the Fleetguard/Cummins AF27684 air filter instead of Mopar air filter... BTW the Fleetguard unlike Mopar has not had to make a different air filter for different years of the 6.7, the AF27684 fits all 6.7l Cummins engines from 2007.5 to 2026 unlike Mopar that once again has to make a different air filter for the 2025 & 2026 Cummins engines where Fleetguard does not. FYI don't let some dealer say you can use Fleetguard being Fleetguard is a Cummins brand and there air filters come in every 6.7l Cummins engine Ram buys...

I would guess it's the correct one, it was put in by my dealership about 10K miles back. The dealership in Kansas, as I said, asked about it and I'm sure they checked the filter at that time as I asked them to do.

 

[06 Dodge]

I would guess it's the correct one, it was put in by my dealership about 10K miles back. The dealership in Kansas, as I said, asked about it and I'm sure they checked the filter at that time as I asked them to do.

FYI I would personally double check to be sure your air filter does not have glue strips or an aftermarket air filter, I've had the local Ram dealership parts dept try to sell me the wrong air filter for my truck, its one reason why I now only use a Fleetguard air filter, Mopar has IIRC 3 different air filters for the 6.7l diesel engines where Fleetguard has just one that works in all 6.7l engines from 2007.5 to 2026...

 

[NotSoFast]

The toughest thing for DPF is low exhaust temperature. Just getting the engine coolant up to snuff won't work. Running it on a freeway at 70 mph can do it, but the truck would prefer doing that under load. That gets the filter hot enough to burn off the new crud. But even that won't eliminate the old crusty deposits. Your filter probably has a good bit of those. It could be that your engine is putting out more soot for some other reason. Long idles while cold dump lots of soot. Really cold starts do as well. I put in a block heater on my truck and plug it in a few hours before starting any time the temperature drops near freezing. It lets the truck start with a warmer engine, and that eliminates some of the very worst soot.
Pick up a small car for short trips.

 

[Quadrophenia]

We had a '22 3500 that the regens gave us such bad problems that over the course of 3 years, I had 4 catalytics replaced, all under warranty. Made very little difference whether it was our limited driving around town or on the highway carrying a truck camper. Once 60,000 miles was on the horizon and the warranty on those replacements was going to end, we knew we had to trade. Got basically a duplicate truck but in gas and have loved the lack of problems and cheaper fuel. We gave up about 3 mpg loaded and a little more without the camper. I miss the engine brake, but that's a pretty easy tradeoff for not wondering if I'm going to spend a few days at a dealership every second.

 

[rtruckn]

I had an issue similar tha regen kept coming on sooner and sooner over a short period of time until it went into reduced power. I finally took it to the dealership. There is an electrical connector that vibrates and can wear a hole in the cold intake tube. They said it is a common thing. They replaced the tube and adjusted the connector so it won't happen again. I would check this out. Mine is a 2021 3500.

 

[392heminut]

The toughest thing for DPF is low exhaust temperature. Just getting the engine coolant up to snuff won't work. Running it on a freeway at 70 mph can do it, but the truck would prefer doing that under load. That gets the filter hot enough to burn off the new crud. But even that won't eliminate the old crusty deposits. Your filter probably has a good bit of those. It could be that your engine is putting out more soot for some other reason. Long idles while cold dump lots of soot. Really cold starts do as well. I put in a block heater on my truck and plug it in a few hours before starting any time the temperature drops near freezing. It lets the truck start with a warmer engine, and that eliminates some of the very worst soot.
Pick up a small car for short trips.

I live 30 miles from the Mexico border in New Mexico. We rarely see freezing temps and when we do it's in the middle of the night/early morning when the truck is not being driven. As another poster suggested, I'm going to try using the Arhcoil products and see if I can get this truck past the drivetrain warranty. At some point the truck is definitely going to loose some weight.

 

[392heminut]

I had an issue similar tha regen kept coming on sooner and sooner over a short period of time until it went into reduced power. I finally took it to the dealership. There is an electrical connector that vibrates and can wear a hole in the cold intake tube. They said it is a common thing. They replaced the tube and adjusted the connector so it won't happen again. I would check this out. Mine is a 2021 3500.

I will definitely check that out!

 

[392heminut]

FYI I would personally double check to be sure your air filter does not have glue strips or an aftermarket air filter, I've had the local Ram dealership parts dept try to sell me the wrong air filter for my truck, its one reason why I now only use a Fleetguard air filter, Mopar has IIRC 3 different air filters for the 6.7l diesel engines where Fleetguard has just one that works in all 6.7l engines from 2007.5 to 2026...

I will check it myself and I will definitely get a couple of Fleetguard filters to have on hand. I usually change the fuel and air filters myself but at the time the dealership changed the air filter they were doing an oil change and I was dealing with some health issues so I let them put a new air filter in the truck.

 

[Jammer24]

run air management test first, see what the results air. then attempt regen.