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Discussion Starter #1
I’m curious, for anyone that monitors their engine with some type of device. How often is your truck regening?

I have a 2014 2500 that is averaging a regen every 40 miles.
Seems really low. I do not drive heavy. 15 miles to work on highway is most of it. But still sees low.



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Roughly every 900-1000 miles or every 24 hours of operation. It seems more tied to the hours than the miles.
 

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All depends on what you are doing. Lot of idling, stop and go, or even light cruising you will Regen more often. Towing heavy most of the time you might rarely see a regen.

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I’m curious, for anyone that monitors their engine with some type of device. How often is your truck regening?

I have a 2014 2500 that is averaging a regen every 40 miles.
Seems really low. I do not drive heavy. 15 miles to work on highway is most of it. But still sees low.



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Every 40 miles seems a bit excessive! I would have to agree with badunit, as I’m in the 800’ish miles between regens. Depends on how much idling and if towing but every 40 does seem excessive.


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For reference, I drive 50/50 urban and highway, almost never towing.

Every 40 miles is excessive under any normal condition if you ask me. How are you monitoring it and determining it is regenerating?
 

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Every 40 miles is not right. If you are seeing that on some monitor, then it must be that it hasn't finished a regen cycle and is just restarting an unfinished cycle and that is why you are seeing it occur that often.

15 miles of driving isn't enough to finish a cycle.
 

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every 40 miles is a real problem. I went about 9 months with only short drives do to family medical issues, It did go through a regen for about a week straight as farthest I went was 3 miles round trip each day, so it never finished regen and started again as soon as I started it up. I determined it was in regen mode based on the smell behind the truck and the drop in MPG while driving. Once I hit the highway, even through it was only for about 15 minutes to go to a Dr visist it finished, it did not do one again for a few months with short driving and idling.

Now I am hitting the highway about every month for a 1200 mile round trip. It almost always does a regen on the return which puts it about about 1,000 miles or so between regens, once again based on the instant drop in MPG and jump back to normal once completed.

So I have done serious short distance driving and idling for months, and periods of mostly highway miles also. every 40 miles is a problem under any driving conditions.
 

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Right now mine is at an average of 1160 miles and 28.2 hours. Varies depending on the type of driving you do. More city driving and it will do it sooner, maybe around 700-800 miles and less hours.

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Discussion Starter #10
^^Yes, how are you determining your truck is regenerating?


Using a ODB2 adapter and app on phone.
I can see the average Regen. When it is Regening, the EGTs and the DPF percentage full.



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Discussion Starter #11
every 40 miles is a real problem. I went about 9 months with only short drives do to family medical issues, It did go through a regen for about a week straight as farthest I went was 3 miles round trip each day, so it never finished regen and started again as soon as I started it up. I determined it was in regen mode based on the smell behind the truck and the drop in MPG while driving. Once I hit the highway, even through it was only for about 15 minutes to go to a Dr visist it finished, it did not do one again for a few months with short driving and idling.



Now I am hitting the highway about every month for a 1200 mile round trip. It almost always does a regen on the return which puts it about about 1,000 miles or so between regens, once again based on the instant drop in MPG and jump back to normal once completed.



So I have done serious short distance driving and idling for months, and periods of mostly highway miles also. every 40 miles is a problem under any driving conditions.


I’ve thought it to be severely low too. I’ve had it to the dealer who worked with the ram engineers. They said the EGR valve needed cleaned. That has made no difference.

I’m at a loss as to why this truck is producing so much soot in such a short time.




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I didn't realize there was so much information to be had. I have an MM3 and have to look at EGTs to determine when it is regenerating. I assume your "DPF percentage full" is showing the DPF getting full very fast and/or not clearing out with the regen process?
 

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If you bring it to a good dealer that deals with the diesels they should be able to measure how much soot it's producing and find out why.
 

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I’ve thought it to be severely low too. I’ve had it to the dealer who worked with the ram engineers. They said the EGR valve needed cleaned. That has made no difference.

I’m at a loss as to why this truck is producing so much soot in such a short time.
I believe the regen's are triggered based on sensors and the computers interpretation of that data. Could be producing way to much soot, could be some other issue. How clean is the tail pipe and the area near it. Any signs of to much soot.
 

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OP, do you happen to have an aftermarket intake/filter? I have notice a correlation to people having frequent regens and having an aftermarket intake. I think a lot of people would say regens happening every 400 miles or less to be pretty excessive. Driving style matters of course.
 

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Can’t a dealer with WiTech do a manual regen. Didn’t I read that a member here has done that for his customers while the truck idles and is more effective then the regens done by the truck running down the highway.
 

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Can’t a dealer with WiTech do a manual regen. Didn’t I read that a member here has done that for his customers while the truck idles and is more effective then the regens done by the truck running down the highway.


If you have the AlfaOBD software and reader, you can do a manual regen also.


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Discussion Starter #18
OP, do you happen to have an aftermarket intake/filter? I have notice a correlation to people having frequent regens and having an aftermarket intake. I think a lot of people would say regens happening every 400 miles or less to be pretty excessive. Driving style matters of course.


Negative. Truck is completely stock.


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Discussion Starter #19
I didn't realize there was so much information to be had. I have an MM3 and have to look at EGTs to determine when it is regenerating. I assume your "DPF percentage full" is showing the DPF getting full very fast and/or not clearing out with the regen process?


Correct. Shows 100%.
The EGR valve goes to zero and the EGTs climb well over 1000 degrees.
Runs the DPF down into the low 20s and returns to normal.



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Discussion Starter #20
I spoke with ZZ Diesel in Kokomo IN. He suggested the DPF pressure sensor might be bad. I’m going to research how to check that before I buy one.


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