STGS517
Member
But, did you see my post above about the Microguard in my truck? It is the correct one from about 3 weeks ago. Maybe they changed recently.
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6.7 Engine Air Filter Confusion
- Thread starter mbarber84
- Start date
OLEJOE
Well-Known Member
I think they did change but to the one with the black seal and glue strips. I think you got one of the older ones.
Spoke to genos garage around 8:30am ET this morning and they told me they had quite a few Mopar 53034051AB filters in stock. Get‘em while you can.
If you note, that is one manufactured in USA. Not Mexico. Looks like the ones from Mexico are the ones that are significantly different. It also has that same “EEUU” marking that all my past Fleetguard’s have had.
I’m not one to panic buy, however these are the last three Fleetguard AF27684’s my local Freightliner dealer had in stock. I figure this will buy me some time while this mess gets sorted out. I prefer to have a seat when the music stops 
STGS517
Member
Yep, probably same people making them for everyone. Now black with glue strips. Who knows!!
steve49
Well-Known Member
I don't know guys and I have nothing to base this on, I'm just not thinking the glue strip itself is even an issue. As I previously stated the Mopar AA filter has more thinner material pleats and the glue strips, and the Mopar AB filter has less pleats but they are a thicker material with no glue strips. I would think the only difference between the two filters is the amount of air flow going through the filters, and maybe mbarber84 comment on the MAF sensor has some merrit? I actually ran the AA filter in my 2019 Bighorn without any issues and never had a regen issue, and also had had the fuel pump recall replacement as well. When the Mopar Star Parts notice came out about the filter update, I switched to the AB filter and shortly thereafter had two early regens! I left the AB filter in and I don't know if the computer readjusted itself, but now my last two regens are back to normal at the 24 hour driving time with one at 779 miles and the last at 802 miles since last regen. Too much cumpter electronics! 
Riddick
Well-Known Member
Ordered me a filter from Genos, always good to have a spare on the shelf anyways.
Let me know your thoughts on this guys. My truck is tuned and my HP Tuners MPVI3 has the ability to datalog. I saved my Wix filter that has just over 1k miles and I am thinking about datalogging the truck with the OEM filter and with my Wix filter so we can compare the data. We should be able to monitor the fueling and the MAF and see if there are any differences.
Where I need help is how should I do the datalogs (cold start, cruising, idling once warmed up, WOT)? Looking for some feedback here, I guess in theory any of those will work as long as I do the same for each filter. I am not sure when I would have the time to even do this but just throwing it out there as a possibility.
Let me know your thoughts on this guys. My truck is tuned and my HP Tuners MPVI3 has the ability to datalog. I saved my Wix filter that has just over 1k miles and I am thinking about datalogging the truck with the OEM filter and with my Wix filter so we can compare the data. We should be able to monitor the fueling and the MAF and see if there are any differences.
Where I need help is how should I do the datalogs (cold start, cruising, idling once warmed up, WOT)? Looking for some feedback here, I guess in theory any of those will work as long as I do the same for each filter. I am not sure when I would have the time to even do this but just throwing it out there as a possibility.
Yes but….I don't know guys and I have nothing to base this on, I'm just not thinking the glue strip itself is even an issue. As I previously stated the Mopar AA filter has more thinner material pleats and the glue strips, and the Mopar AB filter has less pleats but they are a thicker material with no glue strips. I would think the only difference between the two filters is the amount of air flow going through the filters, and maybe mbarber84 comment on the MAF sensor has some merrit? I actually ran the AA filter in my 2019 Bighorn without any issues and never had a regen issue, and also had had the fuel pump recall replacement as well. When the Mopar Star Parts notice came out about the filter update, I switched to the AB filter and shortly thereafter had two early regens! I left the AB filter in and I don't know if the computer readjusted itself, but now my last two regens are back to normal at the 24 hour driving time with one at 779 miles and the last at 802 miles since last regen. Too much cumpter electronics!
1. If the AA filter was superior to the AB filter, why wouldn’t that filter come in the truck from the factory?
2. If the AA and AB filters were equivalent, why the need to have two independent part numbers and two significantly different filters for the same application?
3. If the AA filter was superior to the AB, why not completely eliminate the AB and simplify parts logistics and have only one filter?
I still believe there’s more to this than what we’re seeing. Part of it may very well be related to the other components on the truck itself (like the MAF). But corporate has chosen to maintain the two filters in their system for a reason. The AB filter has been the go-to filter for Cummins powered Ram trucks for a long time. Fleetguard makes it, and their system shows it backwards compatible all the way to 2008. The 6.7 has changed some, but not enough to justify a completely different air filter.
steve49
Well-Known Member
Well, don't disagree with that thought either! When I did my first oil change I did not look at the original filter it came with, so I can't say what p/n was on it. The dealer sold me the AA filter which is what the Mopar online parts sites were showing, was exactly the same color yellow pleats and orange rubber seal., and no glue strips. The second oil change I ordered the OEM filters, and this time the AA filter showed up white with glue strips and black rubber seal. I checked with several sources and was told the now white AA air filter was correct. Then the parts update with the change came about, which I believe was related to the fuel pump recall. RAM used the CP 3 pump forever and then 2019 changed to the CP 4.1/4.2, had the continued issues with it and did the recall to the CP 3.3. On my 19 I had several recalls done prior to the pump recall, and consquently because those recalls had been done prior, there was a hold put on the 19's and some 20's that had those done. They had to write new software because there was a conflict with the new pump recall software. It's odd the majority of the trucks effected are the 22 and later, with just a hit and miss with some of the earlier models, and odd that there are many out there running the AA filter with no issue! I think it's a software conflict issue, but purely speculation on my part, and prior to the new CP 3.3 fuel pump there weren't regen issue that I'm aware of! It's all speculation till Ram solves it!
OLEJOE
Well-Known Member
I’m in total agreement with you about the software issues but unfortunately I don’t have access to any of the equipment it would take to verify my theories. It may be a sensor issue or the threshold tolerance for a sensor, timing, fuel pressure or whatever else is possible. I know highway driving less than 75-80 mph will not passively regen on my truck and it uses very little def. That makes me lean toward it using too much EGR reducing egt’s to the point it doesn’t get hot enough. The 18’ I had was equipped with 3.42 gearing and that possibly caused higher egt’s helping the regen process. As you said all speculation on my part. I find it very peculiar that some trucks will only operate on a single style of air filter while having problems with the other. And on and on we go.
steve49
Well-Known Member
I'm sure if we were able to talk with some of the engineers they would probably have a dozen or more ideas of what could possibly be the problem! I do believe they're working on it, but it's a long drawn out process of elimination, writing many software test patches, installing in test vehicles and running for a period of time, does it work, does it cause other problems, eventually finding a fix. I waited quite a long time for them to come up with the software fix so they could do my fuel pump recall. Again just more speculation, but since this has been going on for awhile now, I'm hoping a fix will be coming out soon! I had a chance to pick up a used 2006 low mileage (43K) 2500 5.9, very nice truck, but they wanted a lot $$ for it, sometimes I wish I had bought it! Unfortunately this is the now common new vehicle experience, and its with all manufacturers..., but shouldn't be!
STGS517
Member
I can tell you this, my truck with the AB filter and the Micro Guard with orange and no glue strips will passive regen at 65-70 and I never see my DPF gauge at more than 1/8 to 1/4 before dropping to zero. I run the highway towing 18 ft flatbed trailer once or twice a week for 100-150 miles and then drive 160 miles one way empty to ranch on weekends and that is what I usually see.
OLEJOE
Well-Known Member
That’s a lot different from my drive cycle. Usually once or twice a week drive 15-20 miles to town, a little intercity then 15-20 miles of interstate back home. I know this has a lot to do with it. I’m also trying a different place to get fuel and see how that works.
STGS517
Member
99% of time, I buy fuel at Murphy (Walmart), the other is Shell.
What gearing? 3.73 or 4.10?
CdnHO
Well-Known Member
Do passive regens show up on the DPF screen? I have been monitoring it for a couple of months. I did note an active regen at around 500 miles at around 40% just running around town. The DPF gauge was at 0 when I started my trip. I towed a heavy 5th wheel 1700 miles over 35 hours, mostly interstate. The gauge never moved off 0 and I never noticed a passive regen. No active regen either but didn't expect to see one towing the fiver. BTW I am using a WIX air filter with NO glue strips.
STGS517
Member
3.73 with an HO
Trying to find out what brand that is. The part number he posted doesn’t come back to anything I can find.
