Question about interrupting regens...
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5th Wheeling
Joined: May 2020
Posts: 42
Likes: 21
Question about interrupting regens...
I bought my 2020 and then Covid hit and based on work schedule changes, I hardly drive anymore and what I do drive is mainly shorter city stop and go.
Recently, it seems like my truck goes into the regen right when I’m getting home from my kids’ practice or a trip to the store, etc. I don’t notice it until I shut it off in the garage and smell the “smell”. I never seem to be in it long enough for it to “complete” the cycle (from my uneducated view).
What do I need to do here? If I shut it down and then notice it, can I restart the truck and just let it idle? Will it go back into regen mode? Do I need to go back and drive it for it to kick in?
How long does it take to perform usually? Can I enable the ability to force it when I want to via forscan?
Thanks in advance.
Recently, it seems like my truck goes into the regen right when I’m getting home from my kids’ practice or a trip to the store, etc. I don’t notice it until I shut it off in the garage and smell the “smell”. I never seem to be in it long enough for it to “complete” the cycle (from my uneducated view).
What do I need to do here? If I shut it down and then notice it, can I restart the truck and just let it idle? Will it go back into regen mode? Do I need to go back and drive it for it to kick in?
How long does it take to perform usually? Can I enable the ability to force it when I want to via forscan?
Thanks in advance.
Hotshot
Joined: Oct 2015
Posts: 19,722
Likes: 12,865
From: Wyoming
Once you shut it down, it won't go back into active regen until the DPF % hits 100. However, it may be a good idea to restart it to let any excess fuel burn off. That's what has been recommended any time you have to interrupt a regen.
An in-town regen may take only 10 minutes, while a highway regen could take 40 miles.
You can enable the DPF % screen via FORScan or get the dealer to do it.
An in-town regen may take only 10 minutes, while a highway regen could take 40 miles.
You can enable the DPF % screen via FORScan or get the dealer to do it.
More Turbo
Joined: Sep 2020
Posts: 508
Likes: 196
Once it goes into automatic active regen (100% full), and you stop before it is finished, it won't do another automatic active regen until it is 100% full again. It just starts loading up again at whatever it got down to before it was interrupted. Depending on how you drive, this can cause short durations between regens.
With Forscan, you can enable the DPF Filter % Full display and you can also enable the ability to disable automatic active regen. If you disable automatic active regen, the truck will continue to load the filter when it hits 100% full. It will tell you that you need to regen soon. You can then pick the right time to renable the automatic active regen and when you do and the filter % is >=100% it will start an automatic active regen shortly as long as the truck is warmed up and rolling down the road.
I have a short commute to work and it leads to similar issues you are facing. Making these changes via Forscan has allowed me to get the most distance between regens by putting me in control of when they happen (sorta, filter still needs to be at 100% before it will kick into a regen).
With Forscan, you can enable the DPF Filter % Full display and you can also enable the ability to disable automatic active regen. If you disable automatic active regen, the truck will continue to load the filter when it hits 100% full. It will tell you that you need to regen soon. You can then pick the right time to renable the automatic active regen and when you do and the filter % is >=100% it will start an automatic active regen shortly as long as the truck is warmed up and rolling down the road.
I have a short commute to work and it leads to similar issues you are facing. Making these changes via Forscan has allowed me to get the most distance between regens by putting me in control of when they happen (sorta, filter still needs to be at 100% before it will kick into a regen).
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Just enable operator commanded regen. I leave auto regen off and either toggle it when its full and I know I have enough time or I wait and just do a static regen. The big difference I noticed on my 20 with static regen compared to my 19 is the truck doesn't rev up as high and is a much faster process than the 19.
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