Soot level went from 38 to 82 in minutes while driving.

[EZRider]

After about 30 miles of mostly interstate driving the soot level displayed on my ScanGauge 2 read “38”. Within minutes of exiting the highway and slowing to 40 mph the soot level displayed jumped to “82” and according to the ScanGauge regeneration started. I continued driving and in about 8 minutes of driving 30 to 50 mph the soot level dropped to “9” and the regeneration stopped. My 2022 Gladiator has 33,000 miles and has never displayed anything on the dash indicating that a regeneration was taking place or telling me to continue driving because a regeneration was occurring. I installed the ScanGauge in October after my Gladiator derated after several hours of interstate driving returning home from a trip from Utah. I took it to the dealership and the DPF was full and required a forced regen. This is not a daily driver so I try to avoid short trips. Yesterday was the 2nd regen I’ve had since installing the ScanGauge. I have two questions:
1. Has anyone else seen or heard of the soot level displayed on the ScanGauge increase greatly (from 38 to 82 in my case) in just minutes?
2. Has anyone else never had a message or light indicating a regeneration was ongoing? When my Jeep derated “Exhaust System Service Required, See Dealer” was displayed.

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[MaximusTX]

After about 30 miles of mostly interstate driving the soot level displayed on my ScanGauge 2 read “38”. Within minutes of exiting the highway and slowing to 40 mph the soot level displayed jumped to “82” and according to the ScanGauge regeneration started. I continued driving and in about 8 minutes of driving 30 to 50 mph the soot level dropped to “9” and the regeneration stopped. My 2022 Gladiator has 33,000 miles and has never displayed anything on the dash indicating that a regeneration was taking place or telling me to continue driving because a regeneration was occurring. I installed the ScanGauge in October after my Gladiator derated after several hours of interstate driving returning home from a trip from Utah. I took it to the dealership and the DPF was full and required a forced regen. This is not a daily driver so I try to avoid short trips. Yesterday was the 2nd regen I’ve had since installing the ScanGauge. I have two questions:
1. Has anyone else seen or heard of the soot level displayed on the ScanGauge increase greatly (from 38 to 82 in my case) in just minutes?
2. Has anyone else never had a message or light indicating a regeneration was ongoing? When my Jeep derated “Exhaust System Service Required, See Dealer” was displayed.

Yes, there is a couple threads on it. This exact thing has happened to a couple people including me and this is what has fixed it and has keep the soot level under 50 and I can't tell you the last time it did a regen as it is working perfectly now.

Rislone® 4744 DPF CLEAN™ Diesel DPF, Exhaust & Emissions System Cleaner

Rislone 4780 Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization

Rislone 4784 DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner

I used all three and the issue went away and I have been staying under 50% soot level since June when I did the treatment. I don't have a scanguage but have a Banks iDASH to measure the soot level.

 

[fourfa]

1. Only guessing, but it seems more likely that the ScanGauge was stuck displaying 38 and not updating for a long time for some reason (loose OBD2 connector, internally stalled, who knows). Then when it finally updated, it looked like a sudden jump.
2. No. The routine regens like the one you describe are silent. It only throws a trouble warning to the dash after many failed regen attempts.

 

[MaximusTX]

1. Only guessing, but it seems more likely that the ScanGauge was stuck displaying 38 and not updating for a long time for some reason (loose OBD2 connector, internally stalled, who knows). Then when it finally updated, it looked like a sudden jump.
2. No. The routine regens like the one you describe are silent. It only throws a trouble warning to the dash after many failed regen attempts.

I experienced the same issue. My soot level would go from around 20% to 80%-90% in under 20 miles and it would happen repeatedly. It wasn't just a one off case. I know exactly what he is talking about. It also put me into limp mode several times.

 

[EZRider]

1. Only guessing, but it seems more likely that the ScanGauge was stuck displaying 38 and not updating for a long time for some reason (loose OBD2 connector, internally stalled, who knows). Then when it finally updated, it looked like a sudden jump.
2. No. The routine regens like the one you describe are silent. It only throws a trouble warning to the dash after many failed regen attempts.

I don’t think the ScanGauge was stuck or failing to update because up until the point that it went from 38 to 82 the soot level had been gradually dropping from around 43 down to 38 while driving on the interstate. The gauge also showed a small increase in soot when I made a short side trip from interstate driving and then continued dropping when I returned to highway speeds.

 

[rharr]

i have had oddities as a well, i have a banks data pro gauge and i have had it sit at 80% DPSL, then go to regen active and the percent does not go down then all of a sudden the gauge reads 9% and regen off.

end of the day I don't worry to much about levels other then if it sits at a high percent for long periods of time. If it hits 88% or more and doesn't regen it will go into service exhaust system which just means you need to pull over a intaite a forced regen. Jscan, lets you do a forced regen.

I had to do forced regen once on the side of a highway, not sure what it's issue was but things got pissed, after the forced regen it's been happy many months later.

 

[Rusty PW]

I have the Banks iDash gauge. I have it set to read SL%, miles between regen, minutes between regens. Off/Pas/Act. I've seen mine go from 30 something % to 80% and go into regen often. Soot Load doesn't have to be at 80% to start a regen. It could go into regen based on mileage or minutes. Back and forth from work. I will see around 750 to 800 miles between regens. On long trips, I see 850 to 950 miles between regens. Minute wise, anywhere from 755 to 950. When it goes into regen. I will reset one of the trip meters to follow the mileage.

 

[EZRider]

I have the Banks iDash gauge. I have it set to read SL%, miles between regen, minutes between regens. Off/Pas/Act. I've seen mine go from 30 something % to 80% and go into regen often. Soot Load doesn't have to be at 80% to start a regen. It could go into regen based on mileage or minutes. Back and forth from work. I will see around 750 to 800 miles between regens. On long trips, I see 850 to 950 miles between regens. Minute wise, anywhere from 755 to 950. When it goes into regen. I will reset one of the trip meters to follow the mileage.

I wasn’t aware that a regen would occur based on mileage. The ScanGauge also tracks mileage since the last regen. In the future I will pay attention to that as well. My assumption was that the soot load alone determines the need for a regen.

 

[Rusty PW]

I wasn’t aware that a regen would occur based on mileage. The ScanGauge also tracks mileage since the last regen. In the future I will pay attention to that as well. My assumption was that the soot load alone determines the need for a regen.

My last couple of regens have been around the 800 mile mark. I can just about tell when it's going to happen.

 

[kb5zcr]

I have had a scanguage2 for abt 2 yrs. I read somewhere (and my experience fits this) that my jeep will regen approx every 700 miles (650-750 or so) since the last regen regardless of soot level.
It will also regen if my soot level reaches 80% (sometimes I've seen it start at 77%).
During the regen, sometimes the soot reading on the scanguage will drop smoothly from 80 down to the teens, and sometimes it will drop smoothly from 80% down to something like 48% then sit there at 48% until the regen is done and immediately begin showing 8%.

 

[Stuntman Mike]

2. Has anyone else never had a message or light indicating a regeneration was ongoing? When my Jeep derated “Exhaust System Service Required, See Dealer” was displayed.

Same with me. No message or indication so far @ 30000 miles.

 

[Chris A]

First
I would like to recommend O’Rileys autos you tube channel for anyone interested in the basic operation and troubleshooting after treatment systems. He is a mobile mechanic in the UK but these systems basically work the same way. I have learned a lot watching his videos.

Second
The soot level is a calculated number based on other parameters that the computer is monitoring.

Third
I would be careful about forced regens and he has multiple vids with over heated damaged DPFs due to forced regen with too high a soot level.

 

[UTDieselRubi]

I find this normal. Figure it to just be technology glitches. Its never affected mine differently, but happens occasionally. I also found on these trucks that short drives vs long drives dont matter. Soot builds and regens the same. I found that increasing the frequency of my air filter changes from the service manual rec down to every 7500mi or below was the largest contribution to better passive regen. These things are incredibly sensitive to air intake. I tried a Rislone DEF treatment once, it shot my EGR and Turbo Temps through the roof, like 1800 and above putting the truck into reduced power mode. Never touched it again, never had an issue again.

 

[MaximusTX]

I find this normal. Figure it to just be technology glitches. Its never affected mine differently, but happens occasionally. I also found on these trucks that short drives vs long drives dont matter. Soot builds and regens the same. I found that increasing the frequency of my air filter changes from the service manual rec down to every 7500mi or below was the largest contribution to better passive regen. These things are incredibly sensitive to air intake. I tried a Rislone DEF treatment once, it shot my EGR and Turbo Temps through the roof, like 1800 and above putting the truck into reduced power mode. Never touched it again, never had an issue again.

Interesting I used all three Rislone treatments DPF, DEF & SCR at the sametime and didn't have any issues and haven't had any issues with the the DPF since the treatment.

 

[JTdiRtyD]

Different brands and quality of fuel can cause this. I see soot levels vary when on road trips when I have to run different brands of fuel depending on where I am. Thats also the only time I see it get high enough to regen, and the only time I've ever had forced regen problems is when on road trips and using different brands. At home with Cenex fuel I seldom see soot over 50 even with short commutes. Holiday fuel causes my soot levels to be higher. When I had my deleted BMW diesel any time I ran Holiday fuel my rear bumper would be black after one tank.

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