On my 2024 F250 KR 6.7 HO the particulate filter readout always displays 0%. I connected a scan tool and it showed 43%. The vehicle was in the shop and I had them look into it and they said that the readout was mainly for "Preventive Maintenance" and wouldn't display the exact reading. They said it was normal and not to be concerned. A friend of mine has the same truck and his readout will display a percentage reading. Have any of you had similar reading as mine? The truck has 28,000 miles and I believe it goes through the regen process but I can't confirm that. No lights are lit up and the truck seems to run fine. Maybe I'm over thinking this and not worry about it. Thoughts?

 

I agree that it is odd that it doesn't show anything but 0%. Did you happen to make any programming changes at all to it? My '25 seems content to go from 0% to 80% in about 500 miles, then do a regen. I leave the instant/average fuel mileage up all the time, and I know when it goes into a regen - the instantaneous mileage drops from somewhere around 23 down to 15-16 for about 20 minutes, then goes back up...and if I check my DPF % it's back down to zero. I hated how long it took my Ram to do a regen, but at least when I noticed the mileage drop off, I could go to the DPF filter screen and it would tell me if it was doing a regen or not. This Ford doesn't seem to say.

If you aren't getting codes it's likely you won't get any help at a dealership, unless it's one you've been working with for years. I would definitely keep an eye on it, and check with your scan tool from time to time to make sure it isn't getting full. I'm still new enough to these DPF systems that I'm not really sure how to troubleshoot them yet.

 

Your tech at dealer is uninformed
take them for a ride in another truck
it's does read a number, not so sure it's actual percent full or percent of reading ecm needs
Big discussion on this forum about it
Is it percent needed to trip a regen or percent indeed of restrictions
But your dealer is mistaken
the pics are readings from truck at speed.
the high dpf back pressure was in relation to under 20 percent in ipc
then the lower one was afyer temps came back up at 70 mph and it started passive regen

 

I’ve started watching my 24 6.7 HO closely. On the current cycle the info display showed 0% until the “scan tool” (an iDash pro in my case) reached 54% and the info display changed from 0 to 5%. The info display increases in 5% increments. Data so far: iDash 0-53:info 0, 54:10, 64:15, currently 67:20 (515 miles since last regen).

So far when the iDash reaches 100% the truck goes into regen, long before the info display reads 100%. Typically info only reaches 40-50%. I’m still trying to figure it out. If DPF back pressure is involved, it’s tricky because it depends on rpm/load.

Watch the scan tool and mileage display to see when the truck regens. Perhaps your driving habits are keeping your dpf clean through passive regens?

 

After watching my percent on the ipc
versus mileage
I think the reading on dash is percent of a time/mileage thing that trips a regen, not necessarily am actual restriction increase in back pressure
my pressures stay very consitent with my above numbers
Once your driving at a temp to do passive
And it hovers in 20 or below...I have driven more than 600 miles before a commanded regen
Routine now for me...
Last month is sustained speed at 75 or higher will net 5 to 0 percent
reading until i get into slow traffic or stop go
then it creeps back up as temps stay lower at the dpf.
I like the commanded regen now.. they are fast
Compared to my 21.. ten miles it goes from 55 to 0 percent.

 

I have a 2024 with standard 6.7 and have the same concern. I'm at 40k miles. Occasionally I will see the exhaust filter percent at 5-10 but it is very rare. I know it goes into regen at times because I will smell it when I get home on occasion. I think my driving habits have a lot to do with it. My shortest trip on any day is about 15 miles with one stop sign and running about 60mph. Most miles are highway/interstate not towing. I tow a 7k camper about every 6-8 weeks. I'm thinking the truck does mostly passive regens because I am typically on the road for several miles at highway speeds. Almost never stop and go or short trips. I don't have i-Dash or any other monitoring system. Just using the dash gauge. I do have a scan tool for diagnostics I guess I can connect to see if it shows anything. I do see the fuel mileage drop at times during trips and assumed that was due to regen.

 

Running at expressway speeds helps keep the DPF cleared out, as exhaust temps are typically higher. Combustion temps are typically higher as well, leading to a more complete burn and less soot (but more NOx meaning more DEF usage). Haven't been on the expressway as much with this new truck, but with my Ram CTD, just getting on the expressway made the DPF clean out.

 

FYI a little education on the DPF.
1st off a 23+ truck will do an Active Regen every 497 miles REGARDLESS of the filter percentage. Unless you have an aftermarket gauge that shows Active Regen, You will miss most regens.
2nd These trucks will do a Passive Regen ANYTIME your EGTs in the DPF exceed 572° That is pretty often with the 23+ trucks, because they run 150-200° hotter than the 22 and previous trucks.
Just normal freeway driving at 70-75 mph will push my EGTs past 572° on my 23 HO. Towing, even on flat ground, I'm at 900-1000° and climbing 7% I'll see 1475° So you will be doing a Passive Regen alot.
I almost never see my DPFpercentage above 50%. Passive regen just keep it lower than that. It also means that when I do an Active Regen, They are much shorter ( faster) than my previous trucks, Usually 10 minute and they are done. Part of that is the 9th injector and part of it is that the DPF just doesn't get as plugged up as older generation of 6.7 L trucks.

Green LED in the EDGE CTS indicates truck is in Active Regen. Bottom right shows last DPF regen was 500 miles ago. And you can see my EGTs are still climbing for the Regen at only 875° ( they will break 1100 usually at peak of regen)

This particular regen, DPF was only at 50%


Here you can see, I'm just doing easy freeway driving and the EGTs are still 741° which is well over the 572° required for Passive Regen


Bottom line is that if you are towing or kinda working the truck. Your Passive Regens will keep the DPF % very low if not totally at Zero

 

The 497 mile statement is not true, at least for me anyways. I read about this 497 thingy on another post somewhere. My Truck had about 1300 miles on it. I should have hit a regen at 1491. Never happened. DPF got to around 70% at about 1590 miles and truck went into a regen.
I’ve had 2 other regents around 30% and 50% dpf fullage.

 

Not true for me either. This myth needs to stop getting perpetuated. I have had 2 different 2024s and neither exhibited clockwork regens - in fact I have gone hundreds more miles than 497 between regens with 100% full DPF reading being the trigger.

 

I took my truck in for a recall and complained about my exhaust gauge being at 0 for 8k of my 11k miles on my 2025, I watch it like a hawk. They wrote on the ticket “Had to educate the customer on diesel trucks”. Said the gauge would stay at 0 u til it got around 100k miles on it. I told them that sounded more like an ash measurement instead of soot. I again told them it worked up and down for the first 3k miles on the truck, which they said it did not.

talked to 2 other dealers, they said they didn’t know what that was, just drive it. Ford FB page told me to talk to a dealer. I ask for someone to just talk to me about this at ford, she said she could not do that.

Something definitely changed cause it read when I first got it. I don’t think it’s a big deal but, something isn’t working as it’s designed to and I can’t get help, just blown off.