jasmith348
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Yeah, I know. just trying to bring as much attention to this problem as possible.
Ram Heavy Duty Forum
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Regens at alarming rate!
- Thread starter NVYCHF
- Start date
In my experience, they are nothing more than a go between for the customer and the dealership. They can however point you towards other customer service departments within RAM but your reasons need to be legitimate or you’re wasting your time.
Just posting this here as well in my Regen frequency thread:
There’s been some new information and diagnostics passed down from STAR regarding regeneration frequency issues on these trucks. This isn’t a TSB yet, but that might be where it’s headed. See below:
There’s been some new information and diagnostics passed down from STAR regarding regeneration frequency issues on these trucks. This isn’t a TSB yet, but that might be where it’s headed. See below:
jasmith348
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Thanks!!! Just sent to my dealer.
DougB
Well-Known Member
Nice to see progress. Hopefully, Ram will get ahead of this versus waiting for everyone to reach P2459 state.
DougB
Well-Known Member
The MAF adaptation tables are what I was wondering if would be reset by a battery disconnect, but not really surprised to see it doesn’t and that it takes a lot of driving to build the tables.
The MAF reset procedure of three specific 10-min-on/10-min-off drive cycles seems a bit excessive versus something simple in the software. Guess SW engrs had their reasons for doing it that way.
Maybe worth trying to reset even if we have the wrong/old MAF?
The MAF reset procedure of three specific 10-min-on/10-min-off drive cycles seems a bit excessive versus something simple in the software. Guess SW engrs had their reasons for doing it that way.
Maybe worth trying to reset even if we have the wrong/old MAF?
So here’s something I’m taking away from that document. (I’ll circle important points in red). 
Two take aways here that might be critical pieces of knowledge:
The first is that engineering did indeed confirm that 53034051AB is the correct filter for the Cummins trucks, and that it is extremely important that this filter be present in the intake box.
The second (if I’m reading correctly) is that the MAF “learns” when parameters like air filters are changed. This is important to know primarily due to the issue many of us experienced with aftermarket or substandard air filters. My own truck had an issue with the Mopar 68517554AA filter after running it for a few weeks. It was constantly putting the truck into regeneration. Despite the fact that the dealer sold the filter to me as the “new” or “updated” filter. After finding out this was indeed incorrect, I switched back to the correct filter 53034051AB and the problem began to rectify itself, although it took several thousand miles to “normalize”.
This may explain why some people have issues with aftermarket filters, switch back to the correct Mopar filter, but do not always necessarily see an immediate improvement in the trucks performance.
Two take aways here that might be critical pieces of knowledge:
The first is that engineering did indeed confirm that 53034051AB is the correct filter for the Cummins trucks, and that it is extremely important that this filter be present in the intake box.
The second (if I’m reading correctly) is that the MAF “learns” when parameters like air filters are changed. This is important to know primarily due to the issue many of us experienced with aftermarket or substandard air filters. My own truck had an issue with the Mopar 68517554AA filter after running it for a few weeks. It was constantly putting the truck into regeneration. Despite the fact that the dealer sold the filter to me as the “new” or “updated” filter. After finding out this was indeed incorrect, I switched back to the correct filter 53034051AB and the problem began to rectify itself, although it took several thousand miles to “normalize”.
This may explain why some people have issues with aftermarket filters, switch back to the correct Mopar filter, but do not always necessarily see an immediate improvement in the trucks performance.
OLEJOE
Well-Known Member
I’m wondering about the reset without changing anything also. Wondering if the 7554aa filter was installed and then do the relearn, would it possibly work then or has to have the 53034051ab or it will not work? The reason I wonder about this is the fact that the manufacturer of the FleetGuard and Wix have changed the process and changed the COO and plant that they are made in. I’m also wondering what is going to happen if and when they change the Mopar filter since they all appear to be manufactured in the same place. Hopefully FCA/Stelantis, Mopar and whoever else is involved put pressure on Mann Hummel to keep producing the correct filter that we need.
Does Mann Hummel make that filter? I was under the impression it was a Fleetguard product same as the final fuel filter and the engine oil filter. The 53034051AB seems to be the only filter that has not changed in its design or construction since 2019. The ones recently sold by Genos Garage were identical to the ones sold previously over the past several years. I had someone open a brand new 2024 a few weeks ago, same old 53034051AB in that air box also. I wish we could get a definitive answer as to exactly who makes it and where that filter is made. I’m wondering if Ram didn’t attempt to obtain some exclusivity agreement in order to solidify a constant supply of the correct filter. If engineering is calling that 53034051AB out specifically, they have a reason to do so. I wouldn’t even consider trying to relearn the truck on something else. These things have enough issues.
OLEJOE
Well-Known Member
According to my conversation with a FleetGuard rep, FleetGuard does not make the AF27684 in house. It is outsourced and was from Wix who is now owned by Mann-Hummel. MH either by design or circumstances has lowered the quality of Wix filters to the point NAPA is discussing changing vendors for their Gold line of filters. The rep said they do make the oil and fuel filters for our trucks in house but not the air filter.
With the 53035041ab and the FleetGuard side by side look identical to each other.
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Interesting. So that explains why my original NAPA 6930 (WIX 46930) was identical to both the Mopar 53034051AB that I pulled out of my truck at the first oil change and the subsequent Fleetguard AF27684 filters that I used. They then subsequently changed that filter design by the time I was ready for my second oil change. I took the Napa back because it didn’t look anywhere near what it used to. That’s when my dealer sold me the incorrect “AA” and my regen frequency issue started. The Fleetguard’s were also identical to the 6930 up until recently. I wonder if Ram signed an exclusivity contract for the correct filter in an effort to lock down a supply and fix their inventory shortfall?
OLEJOE
Well-Known Member
I don’t know. I do know that a lot of the Mopar filters are made by Purolator and they are also owned by Mann Hummel. Probably why the new different FleetGuard filter had a Purolator part number on it. I hope they can continue to spec and source these original style filters either through MH or somewhere else.
The MAF relearn is interesting. Being able to relearn after a MAF sensor change without having to have a specialized computer. My truck is doing better every day. I’m not having any issues with regens at all but I want to stay informed of any progress other people are finding out just in case I do.
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Surprised nobody has the ability or wherewithal to flow test these different filters...
OLEJOE
Well-Known Member
Well if in 2 or 3 years we’re able to have 1 of the new or updated MAF sensors sourced, maybe UAW won’t be on strike and we can get it installed and it won’t matter what brand air filter we run. They might figure it out just before ICE’s are outlawed.
joshuaeb09
Well-Known Member
The MAF adaptation procedure is interesting. If I had the time I'd be tempted to do it with my Bank CAI to see if I could get it to stop throwing the P0402 code, however, I'd had had it on there for a good while. This might explain why our other truck that we just lived with the P0402 on hasn't thrown it in a while (Also Banks CAI). The S&B CAI has never caused the P0402 and runs well on my truck so it'll probably stay on there for the rest of its life running the dry, disposable filters with a wrap on them. Both airbox setups seem to be marginally better on my truck for sootloading than the stock airbox/filter when operating under bad conditions like when I can't steal my wifes crossover to go to dr appointments in the city and I'm stuck in traffic idling, not getting up to temp, etc. They certainly weren't worse and my truck, aside from one experiment with the EZX before I removed it, has never had an active regen that wasn't the 24 hr regen since I ditched the stock airbox/filter.
OLEJOE
Well-Known Member
I really like how the S&B looks. Looks like it is very well engineered. I have noticed that the arrangement of the sensors is reversed from how they are on the stock intake filter box outlet. I really like how the filter can be checked without having to open the system and the ability to use the dry disposable filters. Also like how they straightened the ducting for the incoming air and lowered and straightened the ductwork to the turbo. I’ve been tempted to get one but with the problems people have been having with different issues about filters (MAF’s) I thought I might better stay with what I have. I’ve heard of some people having problems with the CAI’s throwing codes and a few like you who say it fixed theirs.
Do you happen to know which MAF sensor you have in your truck?
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joshuaeb09
Well-Known Member
I'd have to go look as I've never thought to check the P/N since the P0402 code is very common with the Banks CAI and we had it happen on both trucks. I love the S&B setup as I can easily clean all the dead butterflies out of it with a shop vac through the cover and running a wrapped filter they don't get embedded in the pleats. This is the main reason most of my trucks have had some sort of intake with a wrapped dry filter on it as the stock filters can get down right horrible very quickly during butterfly season in my experience. Hated pulling apart the stock air box just to suck out the dead bugs and pick them out of the pleats - The ram air scoop on my truck seemingly works very well lol.
One of my 1500's had had a Vararam on it and that was even worse... if I didn't clean out the butterflies weekly during butterfly season the whole back half of that thing would be come a giant butterfly graveyard lol. I had to get a wrap for that filter as well since I got real sick of cleaning the filter every 3 months.
OLEJOE
Well-Known Member
It’s pretty buggy around here also. The ability to clean it out is a definite plus. Would taking the side plug out for a run or 2 help blow them out?
joshuaeb09
Well-Known Member
Hmm haven't thought to try it. I run plug in 100% of the time as I noticed it gave me slightly better hwy mpg on some of these long trips I take. Also checked and I have the German made MAF in my truck.
OLEJOE
Well-Known Member
I have the German one as well and not having any issues (knock on wood) so far. I did have to change my drive habit some to include more interstate driving and changed fuel brands. Last 2 regens have been at 24 and 25 hours since the last one and DPF gauge has only gotten up to 25% but started dropping as soon as I got on the highway. It has never regened with less than 10 hours on it and no extra ones towing.