Regens at alarming rate!

[HighlandRidge]

"The RAM dealer lied directly to my face - tried to sell me $400 worth of air + fuel filters I do NOT need. "
I get you are angry about your truck not working correctly. I would be also. As mbarber84 stated, the dealer was just going through a process of elimination which includes the air filter. I agree the fuel filters are irrelevant as far as your DPF code. Just saying if the dealer did not know you changed the fuel filters, then they would have thought they were due and may not have been trying to sell you stuff you did not need.

The RAM service tech had my truck in the shop for THREE hours - with an appointment - They acknowledged seeing the fuel filter life gauge but insisted on me paying them $400 to change the fuel filters anyway.

​

The local auto parts store plugged in the device, hooked it up to a computer and showed me the code in less than 10 minutes, while smiling and did NOT charge me a single penny. They informed me the part was a "dealer ONLY" item.

RAM Service flat out refused to tell me what the error code was that triggered the check engine light unless I paid them $400.​

PS ~ Changing fuel filters is NOT rocket science - I'm NOT a mechanic by trade & I completed the task in about 90 minutes after watching a single youtube video.

Full disclosure; I did take auto shop class in High school back in the '80s though!

PSS ~ I only learned about auto parts stores providing this check engine light service through this forum after ranting about the poor treatment from RAM - For that I am grateful - I am here to learn.

 

[HighlandRidge]

You said the air filter had been replaced previously, with a Fram filter.
An incorrect p/n filter or an after market filter are known to cause the “too frequent regeneration” DTC, so the advisor was not totally off the mark.
Yes the DTC references the DPF, but only as a regeneration function. The DPF filling with soot, causing a regeneration, is likely caused by something other than the DPF itself.
The operation with the Fram filter installed has likely filled the DPF with soot and will take numerous regenerations or a nice long trip pulling that 5th wheel with the correct filter installed and lots of passive regeneration helping to clean out the soot build up.

The automatic regen process triggers at 25%! I snapped a pic the first time the message appeared on my dash.


It has done this twice in 130 miles - Both times I drove until the process completed - in about 10 miles. I am amazed at the amount of diesel fuel wasted for this process to play out. I think it's about a half gallon judging by the avg mpg calculator. It really caught my attention the first time because I already had a low fuel indicator light lit up. It showed only 48 miles to empty and quickly went down to 21 after only a couple mile driving - I wasn't sure what was going on!

 

[kanigie]

What configuration is the truck ?
Sounds like it might have been a former service truck of some type that spent much of its time going from site to site and idled a lot when there.

For the person with the high idle and drive hours his DPF indeed might be cooked but for low mileage trucks its usually not the DPF.

Just clicked, all makes sense now. The "Automatic exhaust system regeneration in progress continue driving" message after leaving dealer was probably the first time the truck saw proper regen conditions in some time. Didn't have truck on the DPF gauge but was monitoring MPG for the first week plus. Was seeing 22mpg+ but noticed some commutes (65 miles) didn't preform as well, that's because it was performing a normal regen! This truck's A/C definitely kept someone cool while sitting on a job site!

Someone cleared the P2459 code, either dealer or previous owner before it popped up 1,800 miles later.

Have read some people clean their DPF filters, this something I can do with a 2022 CTD, would you recommend? Or do I wait a month for dealer appointment (just called, put me on cancelation list but can do no better than mid Oct).

 

[HighlandRidge]

2,038 total hours with 649 idle means it’s seen 32% idle time. That’s a relatively high amount of idle hours. I’ve seen worse, but it could be better. Cummins Inc considers idle hours to be excessive anytime the idle hours exceed 16% of the total hours.

This is interesting..,

Just checked mine and looks like my idle time is roughly 12% - I actually thought it would be less than that as I make it a point to NOT let the truck idle.

 

[mbarber84]

Most likely solution:

"Replace Diesel Particulate Filter..,"

View attachment 62568

It doesn’t appear that you’re here to learn anything. You seem to be listening to respond, rather than listening to learn.

You’ve been instructed multiple times from people who are unquestionably more experienced than you on what has been occurring with your truck. And yet, you keep repeating the same responses as if somehow, magically, the rest of us (who are correct) are going to somehow change our minds and agree with you.

The $100 scan tool that your local auto parts store used to retrieve the code (P2459) has absolutely no way to determine wether or not your DPF is faulty (it very likely isn’t). The suggestion to “replace the DPF” is a generic response at most. The actual determination of wether or not a DPF is indeed in need of replacement is a lengthy diagnostic and testing procedure that most definitely isn’t accomplished in a 10 minute code scan in the parking lot of your local O’reilly’s or AutoZone.

The dealership was following the proper sequence of instructions and diagnostics to help you figure out what was going on.

Furthermore, just because the fuel life indicator says “68%” does not mean that the filters themselves could be compromised or that you may have taken in some bad fuel that caused them to plug up or become somewhat restrictive. The fuel filter life indicator is based solely on mileage traveled after resetting. When you are attempting to diagnose and correct a P2459 issue, everything on the list has to be inspected and confirmed good before moving on to the next item. These trucks are horrendously complex. It only takes one aspect of the system to be affected in order for the system to begin functioning improperly.

 

[mbarber84]

Just clicked, all makes sense now. The "Automatic exhaust system regeneration in progress continue driving" message after leaving dealer was probably the first time the truck saw proper regen conditions in some time. Didn't have truck on the DPF gauge but was monitoring MPG for the first week plus. Was seeing 22mpg+ but noticed some commutes (65 miles) didn't preform as well, that's because it was performing a normal regen! This truck's A/C definitely kept someone cool while sitting on a job site!

Someone cleared the P2459 code, either dealer or previous owner before it popped up 1,800 miles later.

Have read some people clean their DPF filters, this something I can do with a 2022 CTD, would you recommend? Or do I wait a month for dealer appointment (just called, put me on cancelation list but can do no better than mid Oct).

Makes sense. Most likely what happened.

Cleaning the DPF on these trucks is difficult because they were designed in such a way as the filter itself isn’t serviceable in the same manner as a large commercial truck. There have been some users who actually cut open the DPF, removed and washed it, and then reinstalled and welded it closed.

 

[kanigie]

Makes sense. Most likely what happened.

Cleaning the DPF on these trucks is difficult because they were designed in such a way as the filter itself isn’t serviceable in the same manner as a large commercial truck. There have been some users who actually cut open the DPF, removed and washed it, and then reinstalled and welded it closed

Gotcha, that'll surely void any warrantee! Think I'll wait for the dealer.

Will report back for future searchers.

 

[Riddick]

Just clicked, all makes sense now. The "Automatic exhaust system regeneration in progress continue driving" message after leaving dealer was probably the first time the truck saw proper regen conditions in some time. Didn't have truck on the DPF gauge but was monitoring MPG for the first week plus. Was seeing 22mpg+ but noticed some commutes (65 miles) didn't preform as well, that's because it was performing a normal regen! This truck's A/C definitely kept someone cool while sitting on a job site!

Someone cleared the P2459 code, either dealer or previous owner before it popped up 1,800 miles later.

Have read some people clean their DPF filters, this something I can do with a 2022 CTD, would you recommend? Or do I wait a month for dealer appointment (just called, put me on cancelation list but can do no better than mid Oct).

I would 100% wait it out and let the dealer take care of it. If you purchased from a RAM dealer I would go back and give them the opportunity to fix the issue. In my opinion the engine hours tell the full story and I would make sure they are aware of this. No need to waste your money and time when its covered. Granted, it will more than likely be a lengthy process but it will be worth it in the end.... hang in there. 9 times out of 10 when I see these codes I will say its not DPF related, in your case I think you are the 1 in which yours is plugged from excessive idling.

 

[mbarber84]

I would 100% wait it out and let the dealer take care of it. If you purchased from a RAM dealer I would go back and give them the opportunity to fix the issue. In my opinion the engine hours tell the full story and I would make sure they are aware of this. No need to waste your money and time when its covered. Granted, it will more than likely be a lengthy process but it will be worth it in the end.... hang in there. 9 times out of 10 when I see these codes I will say its not DPF related, in your case I think you are the 1 in which yours is plugged from excessive idling.

100% spot on. Let the dealership you bought it from address it.

If it came from a ram dealer and you are below 50,000 miles, you have full emissions warranty up to that mileage. If you are above the mileage, it may be on your dime unless there’s some clause about buying a used truck with an extended warranty or anything like that.

As a work-around, if it’s a 2022 and it has not had Y43 emissions recall completed yet, as part of the recall process, you are granted a 1 year, unlimited mileage warranty on the DPF from the date the recall was completed.

Your situation sounds like it may indeed need a DPF replacement. If you remove the EGT sensor at the end of the DOC / DPF, you can get a 5mm or smaller bore scope in there and get a pretty clear look at the inlet / outlet.

 

[kanigie]

100% spot on. Let the dealership you bought it from address it.

If it came from a ram dealer and you are below 50,000 miles, you have full emissions warranty up to that mileage. If you are above the mileage, it may be on your dime unless there’s some clause about buying a used truck with an extended warranty or anything like that.

As a work-around, if it’s a 2022 and it has not had Y43 emissions recall completed yet, as part of the recall process, you are granted a 1 year, unlimited mileage warranty on the DPF from the date the recall was completed.

Your situation sounds like it may indeed need a DPF replacement. If you remove the EGT sensor at the end of the DOC / DPF, you can get a 5mm or smaller bore scope in there and get a pretty clear look at the inlet / outlet.

Purchased from an independent dealer, one with no service department. Realize now, not of the greatest moral character.

My truck does have an open Y43 recall.

 

[mbarber84]

Purchased from an independent dealer, one with no service department. Realize now, not of the greatest moral character.

My truck does have an open Y43 recall.

Y43 gets you a year on that DPF under warranty.
I would do whatever you can to get it replaced inside of that year.

 

[baker01]

The automatic regen process triggers at 25%! I snapped a pic the first time the message appeared on my dash.

View attachment 62571
It has done this twice in 130 miles - Both times I drove until the process completed - in about 10 miles. I am amazed at the amount of diesel fuel wasted for this process to play out. I think it's about a half gallon judging by the avg mpg calculator. It really caught my attention the first time because I already had a low fuel indicator light lit up. It showed only 48 miles to empty and quickly went down to 21 after only a couple mile driving - I wasn't sure what was going on!

Am I missing something? I see the DPF at 25% but nothing about regen in process

 

[HighlandRidge]

Am I missing something? I see the DPF at 25% but nothing about regen in process

Yeah, the tranny was in park while the pic was snapped.

The automatic process only happens while driving and you will see a message something like "Automatic regeneration in process"

 

[baker01]

Yeah, the tranny was in park while the pic was snapped.

The automatic process only happens while driving and you will see a message something like "Automatic regeneration in process"

Ok, that makes sense.

 

[steve49]

I don't pay any attention to the truck dash gauge; I have never seen it go much more than 45%, and for sure there has been plenty of conversation on here about it not moving etc. etc. When I had my 2014 EcoDiesel, the truck didn't have any gauge at all, so I purchased the ScanGauge II OBD reader so I could monitor the regens. So, I now use it in my 19 2500 Cummins, just had to reprogram to the correct parameters. Recently I reported having two regen that occurred earlier than normal, not sure why, but my regen that occurred yesterday went normally, DPF 99+%, 23+ hours, and just over 1000 miles. The pic is from today when I went to start it this morning. With this truck I have never seen it finish with 0%, usually in the mid 19-20%, the EcoDiesel finished at 9%.

 

[HighlandRidge]

Y43 gets you a year on that DPF under warranty.
I would do whatever you can to get it replaced inside of that year.

I contacted a different dealer today - I informed the service advisor about the open recall issues for my truck - She has the parts to take care of the 13A in stock and She informed me the DPF issue has created a national backlog but once I get my truck into their shop, it will be in writing for me to get the necessary repairs, although that may take months to get those parts!

I'm on the books for next Thursday afternoon.

 

[HighlandRidge]

Purchased from an independent dealer, one with no service department. Realize now, not of the greatest moral character.

My truck does have an open Y43 recall.

Today I was informed There is a national backlog for parts to remedy the Y43 - get your rig to a dealer right away to get in line/parts ordered.

 

[mbarber84]

I contacted a different dealer today - I informed the service advisor about the open recall issues for my truck - She has the parts to take care of the 13A in stock and She informed me the DPF issue has created a national backlog but once I get my truck into their shop, it will be in writing for me to get the necessary repairs, although that may take months to get those parts!

I'm on the books for next Thursday afternoon.

It’s good to get the recalls completed. However, I wouldn’t count on the Y43 recall correcting your frequent regeneration issue. The recall installs the particulate matter sensor that was missing when the 2022’s were manufactured. That sensor has no control over or input in the regeneration process. If you drive the truck to the dealership with a regeneration frequency issue, you’re going to leave with it in the same condition. There have already been numerous trucks with regeneration frequency issues that have had y43 completed, none of them were corrected by the recall.

 

[mbarber84]

Today I was informed There is a national backlog for parts to remedy the Y43 - get your rig to a dealer right away to get in line/parts ordered.

Every recall is this way. 13A, Y43, etc.
it’s not as much a backlog as it is a slow controlled release of the necessary components by Ram. They’re operating under a restriction that only lets dealers order one recall component per week. They have lots of the components necessary to complete the recalls but they’re focusing on putting them into brand new production trucks. They trickle a small amount into the recall program to keep the momentum moving, primarily because it’s mandatory on their part.

 

[HighlandRidge]

It doesn’t appear that you’re here to learn anything. You seem to be listening to respond, rather than listening to learn.

You’ve been instructed multiple times from people who are unquestionably more experienced than you on what has been occurring with your truck. And yet, you keep repeating the same responses as if somehow, magically, the rest of us (who are correct) are going to somehow change our minds and agree with you.

The $100 scan tool that your local auto parts store used to retrieve the code (P2459) has absolutely no way to determine wether or not your DPF is faulty (it very likely isn’t). The suggestion to “replace the DPF” is a generic response at most. The actual determination of wether or not a DPF is indeed in need of replacement is a lengthy diagnostic and testing procedure that most definitely isn’t accomplished in a 10 minute code scan in the parking lot of your local O’reilly’s or AutoZone.

The dealership was following the proper sequence of instructions and diagnostics to help you figure out what was going on.

Furthermore, just because the fuel life indicator says “68%” does not mean that the filters themselves could be compromised or that you may have taken in some bad fuel that caused them to plug up or become somewhat restrictive. The fuel filter life indicator is based solely on mileage traveled after resetting. When you are attempting to diagnose and correct a P2459 issue, everything on the list has to be inspected and confirmed good before moving on to the next item. These trucks are horrendously complex. It only takes one aspect of the system to be affected in order for the system to begin functioning improperly.

It appears you have tunnel vision -

Here's a guy whose truck throws the code with only 6200 miles with factory air + fuel filters

Mine threw the codes and the CEL again yesterday. Only 6200 miles with factory air and fuel filters.