Within the last 2 months my truck has started to regen @75%. For 6 years it has always reached 100% prior to a regen. Is this the start of a DPF filter problem or is something else going on?

Fortunately I have an extended warranty that is good till April 2025. Truck is 2017 Powerstroke.

TIA

 

I don't think the DPF is covered by a Ford extended warranty. You would have to be under the 5yr/50k miles emmisions warranty.

 

Has your truck had a PCM update lately?
Regens on my truck when unloaded were doing the clockwork 496 mile regens, now, after the latest PCM update, the miles vary as high as up to 900 miles between regens.

 

mine regens every 4XX miles driven regardless.

usually reaches 30-40% before it regens and then the dash reads 0% again

depending on the weight of a trailer it might be towing it’ll be lower than that

ive never seen mine reach 100% not sure if its supposed to or not

 

Is that because it is doing passive regens in between that mileage?

Because my truck is never used in a way that allows a passive regen it has only started active regens when 100% full. Every time. The mileage varies based on use (city vs highway) but it has never started one at a lower %.

 

even if it doesn’t do much towing I don’t see it get high. Like clockwork it’ll hit the regen mileage around 40%

When towing I drove a few hundred miles and it never increased the filter percent at all.

it’s a 2023 so maybe something has changed?

all I know is it seems to be pretty smooth and has no issues so I haven’t had any reason to believe it’s not behaving normally.

only time I’ve seen it cross above 45% was when I shut it down as it began a regen and I think it maybe got up to 75% or thereabouts before that regen.

i honestly don’t track it to a T but can say anytime I see it begin to regen it’s going from 40ish back down to 0% every 4XXmiles

never gets close to 100 that’s for sure

 

My 2017 always had to reach 100% to actively regen. If you start to see if regen more frequently that can indicate an issue. You would need to know what inlet and outlet temps are and DPF differential pressure.How many miles on the truck?


They seemed to have changed the regen strategy on the 2023s. If you are monitoring soot load on your dash, you should notice it actually fluctuates in some cases unlike previous models. These new ones tend to passively regen more(which is good) and when conditions are ideal, will actively regen even if not 100% soot load. The OCR function stills requires it to be 100% to initiate a manual regen though.

 

Also, if you don’t have the OCR function turned on for your truck, I would recommend having that done. It’s a huge help if you aren’t doing a lot of highway driving and allowing regens to complete.

 

I do have OCR turned on but it’s the OCR/Auto which was a mistake. I should go back and change it as it is very seldom I pull in the driveway as it hits 100%. Usually 100% hits a mile or 2 from home.

To a poster above asking about mileage, just hit 48k. Driving conditions have been the same since purchase.

 

I also see poeople who drive older model years with 6.7 PSD saying their regents take over 20 minutes to complete

Assuming that’s because their starting from a much higher soot load?

my 23 is only taking a fraction of that time to get back to 0% on the gauge

i know they changed some stuff for this year. Is it a whole new DPF and it now has a 9th injector (at the filter instead of using the engine) to provide the additional fuel for regen now?

I know they seem to use a little more def & presumably less egr which is good but now I’m curious about the regen schedule more than anything.

 

Extended warranty is premium care which includes warranty.

And a question for any mods that may stroll by. I have had this truck since April of 2017. Original owner. If I include a tag line on my posts that include the list of issues that have never been taken care of in 6 years, will that get my posts deleted?

First issue. Wind noise from windshield when there were a lot of posts of the issue and ford was reseating the glass. Local Ford…Never heard of it. Second issue. The Mexico battery catastrophe. Both batteries where the battery posts would twist with your hand and argue with me that they had to keep the truck for 2 days to do a battery draw down test. Hey DUDE..you can twist the battery posts with your hand!! They replaced 1 battery, also imported and it failed not 1 year later where the voltage was low and causing weak starts. The DPF fluid heater lit up on the dash so I take it in. Local Ford.. we have to order the entire DPF fluid system to repair. Could be as much as a month. This was early 2018 mind you before all the availability issues. So I explain to them I think it’s a voltage issue and am ignored. So I go out and buy 2 batteries myself. Problem solved. Third issue. The heated and cooled passenger seat have NEVER worked in 6 years. Also requires another test that takes all day. Once again..DUDE.. your *** neither gets warm or cold. It doesn’t work. Ford again..we will have to order parts and call you. 5 years later..nothing. Have gone in for the carpet shield fire notice. Not done. The unintentional tail gate opening. Not done. All the trips are listed as unknown problem in Ford pass.

 

Not saying these aren't annoying, but these seem like a dealer problem as much as Ford problems. With dealer support, these should have been resolved.

For the record, it's a DEF heater. There is no DPF fluid, unless that's on the shelf next to the blinker fluid and I missed it.

I'm not a mod, but I don't understand why, on a site for Ford enthusiasts, you'd want an sig that dumps on the trucks we all ostensibly like. Yeah, there are issues, but it doesn't matter who made it. While I'm waiting for my new Ford to be built, here's a list all the things that broke on my RAM in 20k miles: valve body on the 'bulletproof' Aisin, 3,000 on the clock. Steering system leak, multiple parts replaced under warranty, around 10k. 2 grid heater recalls. 1 tailgate latch recall. Tailgate plastic guard coming off, replaced under warranty. One god****m annoying rattle from somewhere in the dash, not yet identified where it is. The difference, from what I can tell, is my dealer actually fixed the problems, and I didn't even buy from them. Parts have caused waits, yes.

My $0.02. Which is worth even less than it was a year ago.

 

I have a 23 as well and it behaves exactly like yours does BUT…… I have a monitor to and don’t rely just on the dash percentage . The regens still take a good 15-20 minutes or so to fully complete . Yes, the percent on the screen drops very quickly to 0 after a regen starts unlike older trucks but if you have a monitor ( I use idash) the regen will stay fully active for a good 15-20 minutes . That’s why I have it , so I don’t shut down before it’s done . And yep if I’m towing it will stay at 0 percent for a good 350 miles and will still do a regen at 499 no matter what

 

My 19 would regen either at 100% or 496 miles. It used to that is. I found it started regens just a few minutes from work or home, so I enabled the auto/manual check box. I also have iDash so I do regens when I have at least 30 highway miles of driving and wait until the iDash reads 100% which is at least 20-30% more than the truck reads. I now go between 900 and 1100 miles between regens.

The 17 will act similar either it hits the miles first or reaches 100% and chances are yours is hitting miles. IIRC mine would hit 70% or less and regen based on miles.

 

This is how I remember it also. I had an Edge monitor on my '17 and it would start a regen between 70-80% full but it would take over 20 minutes and the passive regens were almost non-existent. My '23 will hold a steady fill % if I'm towing or running 75+ on the highway, which tells me that the passive regen is better on the 23' - maybe the DPF runs slightly hotter when out of regen and burns alittle soot while cruising. I think it has everything to do with driving habits - and the ECM takes thousands of readings to manipulate and manage the functionality of the engine, transmission, and emissions. Sounds like the OP may need to sit in the driveway and perform a regen and start with a clean slate. My '23 kicks in around 70-80% too, but it completes a cycle much quicker than the '17 did. Like others have said, it uses more exhaust fluid but I also think the EGR is less. So far, it's a good balance. But I'll still plan a diet for the Silver Bullet when reliable tunes are made available.