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Automatic Regen too often

Ram7 said:
Two questions:

Does anyone know how many miles between regens will throw a CEL?
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Miles are immaterial, it's all based on hours but I don't know how many regen are required in 'x' hours to trigger the CEL.

For an example of miles I've had 24 hour regens with 197 miles on it and the computer doesn't care or think anything is wrong.

Ram7 said:
Secondly, what temp at EGT3 is good for passive regen?
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650° is where passive regen is supposed to start, so with temp loss as long as EGT1 is above 650° and EGT3 is above 600° you should be getting some passive regen, but that also depends on what conditions the engine is operating in. I've seen soot build rapidly with EGT3 above 700°, happened to me today.

Ram7 said:
As others have said and have told me in this thread, 70-75 is an ideal speed and creates enough work for the engine causing the EGTs to get high enough for passive regen but 60 mph is the speed limit where I am and I’m not going to constantly go over the limit by that much. The EGTs have a good jump going from 60 mph to 70 mph but I still think it’s insane to have to go 10 over the highway limit for the filter to clear out.
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Speed isn't as good of indicator as mpg. Less than 18 mpg steady state and passive regen is occurring. I can see 20-21 steady state at 75 on the EVIC and while it's generally not accumulating much soot at that mpg its also not really cleaning the DPF either.
 
Ram7 said:
Two questions:

Does anyone know how many miles between regens will throw a CEL?

Secondly, what temp at EGT3 is good for passive regen?

As others have said and have told me in this thread, 70-75 is an ideal speed and creates enough work for the engine causing the EGTs to get high enough for passive regen but 60 mph is the speed limit where I am and I’m not going to constantly go over the limit by that much. The EGTs have a good jump going from 60 mph to 70 mph but I still think it’s insane to have to go 10 over the highway limit for the filter to clear out.
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3 consecutive regens 40-60ish miles apart. its really close to those numbers for a check engine light.
 
56ram2500 said:
Cant answer the first 2 questions but I can say since I started using Archoil I can get passive regens driving between 60-65 MPH...
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I’ve used both the cleaner and the everyday archoil but didn’t have my monitor in the truck at the time so I stopped using the additive to get a baseline so I can compare. I was using the standard dose but plan on using more at each fill up next go around. I’m glad to hear that it has been working for ya!
 
AH64ID said:
Miles are immaterial, it's all based on hours but I don't know how many regen are required in 'x' hours to trigger the CEL.

For an example of miles I've had 24 hour regens with 197 miles on it and the computer doesn't care or think anything is wrong.
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Thanks for the detailed response. This makes sense. Same reason to go off time vs mileage for oil changes. I didn't think of it that way but I should've. I have a 12.5% idle time so my mind didn't go that direction. I will have to look at my regen form and do some math to figure the hours between regen granted I already know it's going to be low. Warranty won't be applied unless there is a CEL according to one of my dealers.
AH64ID said:
650° is where passive regen is supposed to start, so with temp loss as long as EGT1 is above 650° and EGT3 is above 600° you should be getting some passive regen, but that also depends on what conditions the engine is operating in. I've seen soot build rapidly with EGT3 above 700°, happened to me today.
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Perfect. Thank you!
 
Dinky503 said:
It is really insane that it goes that low before the light comes on. My last set that triggered a light was 70,65,69,31 apart then light came on. You are also right dealer will not do a thing till the light comes on.
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Great info. Thanks for that. Blows my mind.

The Fords seem to have a much better regen process. As far as I know, their regening doesn’t cause diluted oil since there is an injector downstream. They can also have ocr enabled which we don’t have. It seems nice not but not necessarily a must have. I can’t even do it with my cts3 as far as I know. Haven’t been able to figure it out. Sure they still have the cp4 but they can be legally modified or replaced with a different pump. Still a PITA but compare it to diluted oil, possibility of bad lifters and crank I guess… ugh…
 
Ram7 said:
Great info. Thanks for that. Blows my mind.

The Fords seem to have a much better regen process. As far as I know, their regening doesn’t cause diluted oil since there is an injector downstream. They can also have ocr enabled which we don’t have. It seems nice not but not necessarily a must have. I can’t even do it with my cts3 as far as I know. Haven’t been able to figure it out. Sure they still have the cp4 but they can be legally modified or replaced with a different pump. Still a PITA but compare it to diluted oil, possibility of bad lifters and crank I guess… ugh…
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They still have a fuel dilution issue and most guys are experiencing higher amounts of fuel with frequent regen.....
 
Dinky503 said:
They still have a fuel dilution issue and most guys are experiencing higher amounts of fuel with frequent regen.....
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Wow ok. I haven’t read that anywhere. I’ll have to keep and lookout for that then. Pros and cons to everything.
 
Dinky503 said:
Type it ford 6.7L fuel in oil problem.
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Was just reading about their fuel issues when you replied. Yup there it is. Goes back for years. I thought they had an injector within the exhaust but looks like I was wrong about that too unless it has changed.
Dinky503 said:
Ford guys don't post on Facebook unless it's about their matching high heels they just got.
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Hahah certainly seems that way.
 
Ram7 said:
Was just reading about their fuel issues when you replied. Yup there it is. Goes back for years. I thought they had an injector within the exhaust but looks like I was wrong about that too unless it has changed.

Hahah certainly seems that way.
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Ford went to the 9th injector model on the 23 and newer powerstroke. I’m not sure if the fuel dilution issues are present on the 23 and newer trucks or just the 22 and older 6.7s.
 
Ram7 said:
Great info. Thanks for that. Blows my mind.

The Fords seem to have a much better regen process. As far as I know, their regening doesn’t cause diluted oil since there is an injector downstream. They can also have ocr enabled which we don’t have. It seems nice not but not necessarily a must have. I can’t even do it with my cts3 as far as I know. Haven’t been able to figure it out. Sure they still have the cp4 but they can be legally modified or replaced with a different pump. Still a PITA but compare it to diluted oil, possibility of bad lifters and crank I guess… ugh…
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The Ford regeneration strategy is WAY more aggressive. To me, it seems like they are programmed to regenerate far more frequently from what I’ve seen. I have a few farmer friends with F350 powerjokes, mostly 2020 or newer model years. Their trucks seem to be in regeneration mode all the time.
 
my truck just had its first regen. 24 hours on the mark. if i didn't have the gauge up id have never known. my 21 would get throaty and idle high and rougher. this one didnt even change in any way.

i did have a weird thing where the trailer auto popped on until a restart of the truck. no trailer connected. dunno what that was about. the trailer auto pick is as high as the dpf went on the dash. went back to 0 shortly after

dpf 1.jpgdpf 2.jpgtow haul 1.jpg
 
oledirteh said:
my truck just had its first regen. 24 hours on the mark. if i didn't have the gauge up id have never known. my 21 would get throaty and idle high and rougher. this one didnt even change in any way.

i did have a weird thing where the trailer auto popped on until a restart of the truck. no trailer connected. dunno what that was about. the trailer auto pick is as high as the dpf went on the dash. went back to 0 shortly after

View attachment 77498View attachment 77499View attachment 77500
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If someone tailgates you very close in a parking lot or in traffic for more than a few seconds, the truck thinks a trailer has been connected because the blind spot monitors are seeing the vehicle behind move at the same speed and distance. So it starts getting ready to measure the trailer length…
 
mbarber84 said:
If someone tailgates you very close in a parking lot or in traffic for more than a few seconds, the truck thinks a trailer has been connected because the blind spot monitors are seeing the vehicle behind move at the same speed and distance. So it starts getting ready to measure the trailer length…
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oh, lol that makes sense. considering i back into my parking spot at work and its against a concrete wall and i put my hitch about an inch from it so i only stick 4 feet out in the road rather then 4.5 ft :D
 
22PearlRamMegaHD said:
No clue what is going on with my truck. Drove 21 miles yesterday non-stop on the highway at 75mph. Truck DPF evic was at 0 at the start, and by the time I parked it was at 48%. I wish ram/stellantis gave 2 $hits about our issues.
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Agree, the somewhat random nature of what makes the DPF gauge shoot up is puzzling. Mine was at zero yesterday, drove in town about 20 miles (having dealer look at a paint issue). Brought it home and did the annual oil/filter, both fuel filters. Also did the first air filter change. 15k miles on the truck now. All parts OEM from Geno's Garage. Started the truck to hook up a small trailer and the gauge is at 35% or so. No glue strips on air filter.
 
jebruns said:
Agree, the somewhat random nature of what makes the DPF gauge shoot up is puzzling. Mine was at zero yesterday, drove in town about 20 miles (having dealer look at a paint issue). Brought it home and did the annual oil/filter, both fuel filters. Also did the first air filter change. 15k miles on the truck now. All parts OEM from Geno's Garage. Started the truck to hook up a small trailer and the gauge is at 35% or so. No glue strips on air filter.
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It has to be the programming. Whatever they used as a calculation for estimated soot loading. I think the truck uses the estimated values to stay ahead of the actual values. The numbers sometimes shoot up so fast it doesn’t seem plausible aside from a computer driven by a calculation.
 
jebruns said:
Agree, the somewhat random nature of what makes the DPF gauge shoot up is puzzling. Mine was at zero yesterday, drove in town about 20 miles (having dealer look at a paint issue). Brought it home and did the annual oil/filter, both fuel filters. Also did the first air filter change. 15k miles on the truck now. All parts OEM from Geno's Garage. Started the truck to hook up a small trailer and the gauge is at 35% or so. No glue strips on air filter.
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Likely the new air filter having lower restriction than the older dirty filter. I have noticed that any sudden change in intake air quality or quantity seems to throw the system into disarray and the system tries to get ahead of it and causes a regen to try to protect the system. I had been running my truck with some of the AGS slats removed from the shutter assembly. Decided to put them back in and the DPF gauge went from zero to regen in 27 miles with no other changes. So I took them back out and the next regen was was sooner than the last one. The following regen was back on the 24 hour timed regen with zero on the DPF gauge start to finish.

The point Im trying to make is that anything that changes regardless of how insignificant it seems, throws the system into protection mode and starts regening to keep it from stopping up. Some DPF’s are actually getting blocked with more soot and some are not.

Just my personal observations.
 
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