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I drive a 2018 class 8 dump truck with a Paccar engine. There are a lot of idle hours with the type of work this truck does. The most important thing is to idle the truck up to appx 1000 rpm when parked. Also I idle the truck up when warming up in the mornings after appx 1- 2 minutes of low idle, and high idle to cool off the engine a few minutes before shutdown. The owners manual states this is the way to run this engine.
The truck will do passive regens as needed, and I can usually tell by the idle, and the sound of the exhaust if driving. Even so, every so often the DPF filter will clog enough a check engine light will come on with a warning message to do a parked regen or the engine will soon derate. This truck has a manual regen switch that will only activate a force regen when the warning light appears. The forced regen will idle the truck up to around 1500 rpm and last for 30 - 35 minutes.
I said all that to say this, a parked regen will definitely remove soot that a passive regen will not. In the OPs case, I would do a forced regen as soon as possible.
So I've seriously been considering getting forscan for my truck so that I can load the dpf screens and perform manual regenerations. The one thing that's bothering me is that I have a sct x4 tuner hooked to my truck, will forscan and sct work together?. I just run the canned street tune for now because I like the way the truck handles so much better than it did stock but it's still pretty mellow. I haven't been able to find much to the topic of forscan and tuners together, even the f150 forum has been pretty slim on information.
I’m traveling on a ship for the next two weeks so don’t have my notes handy. As I recall there is a letter that identifies whether the engine is in a pickup vs other use truck (ie commercial). There are different PIDs based on that letter
So tell me, can the distance from last regen, which we know is to be set by Ford at 500 for a mandatory regen, be altered? I can almost always go over that mark. My last one was 652 miles.
So tell me, can the distance from last regen, which we know is to be set by Ford at 500 for a mandatory regen, be altered? I can almost always go over that mark. My last one was 652 miles.
Most of the time it regens not based on need but EPA requirements. At least for those that tow anyway. Mine is a rare unicorn that will exceed the backstop on a regular basis, but it would be nice if the programming for others can be altered.
I'm pretty much in the same boat as the OP and been reading the internet and watching YouTube showing people cleaning the filters. While not a Ford engineer this is the cliff notes conclusion I've come to.
While I'll agree that "city" driving and not letting the regen process will is not the best it seems as if you do everything right your DPF will still accumulate some ash. As hot as these things get you still can't burn off everything. After a while the ash builds up you will never get your "flow" back to 100% Which is probably why the DPF filter has a lifespan. (of 100,000 maybe as mentioned in the third post)
For example: I recently enabled the DPF filter screen on my truck with Forscan and now have the % screen on the display. Previously I'd use Forscan lite on my phone which only told me if the regen was on/off. I'd simply drive until it came off at which point I'd assume it was at 0%. Now with the % screen it will somewhat quickly drop to 30%, hang there for a while, then stop the regen process. While I've read that many do not always drop to 0% they get a lot closer than I am getting, I figure I have a good amount of ash that simply can't be burned off.
My truck was bought used and is at about 120,000. I'm new to diesels so I'm figuring this out as I go but it makes a lot of sense to me. It also makes a lot of sense to me to clean it with soap and water to save the couple of thousand it will take to replace it. YouTube is filled with people doing this to other models as well as the Ford 6.0 and 6.4. I haven found any with the 6.7 but we are just getting to this point. Our DPF filter itself doesn't seem that much different than the earlier engines. Incidentally I've only seen them use water, not simple green, although some use a specific DPF cleaner (Sorry don't remember what it was called). I don't think simple green would hurt. I think the idea of a circulation pump is awesome but from what I've seen probably overkill.
I'm not in a hurry to tackle this project but still planning to do so. It will be when the weather gets warmer and I have a few extra days off, just in case thing don't go as planned. I'll give it a few more regens (I'm only at about 3 since I've enable the screen) to see what happens and time to see if any of the current 6.7 owners go online as a Guinea pig.
Just a comment, the 6.0 didn't have a DPF. The 6.4 Did, however.
FWIW mine usually gets down to 30% after a regen and it's always done that since 25k miles.
For another data point, I bought my 2015 new and have about 60K on it. I use the monitor screen on the dash. It almost always runs from FULL to 25% on regen. Most of my trips are 20-30 minutes long. I used to tow my GN long trips 300-500 miles once a month and now I only two about 2 times a year. Mileage averages 14-15 MPG unless I'm in Delaware (50 MPH limits and flat) where I get 1-2 MPG more. I don't go out of my way to let the regens finish. It usually regens about once a tank (typically 32-34 gal) or just under.
For another data point, I bought my 2015 new and have about 60K on it. I use the monitor screen on the dash. It almost always runs from FULL to 25% on regen. Most of my trips are 20-30 minutes long. I used to tow my GN long trips 300-500 miles once a month and now I only two about 2 times a year. Mileage averages 14-15 MPG unless I'm in Delaware (50 MPH limits and flat) where I get 1-2 MPG more. I don't go out of my way to let the regens finish. It usually regens about once a tank (typically 32-34 gal) or just under.
Mines a 2019 w/ close to 15K and mine gets down to about 25% most times with an avg of 480 miles between regens.
The short answer is chassis cab 6.7’s and pickups are not created equal, besides the power on chassis cabs being derated, the DPF and SCR positions are swapped, and with that I assume are other parameters that are tagged and handled differently.
My 2011 doesn't have the OCR enabled. I have to rely on the computer deciding when to clean it (isn't that convenient!!!). I am getting the message that it needs cleaned. Fuel is full, DEF is full, no codes, drive and get it up to temperature on the freeway, it will go into cleaning mode for about 20 miles then stop ( goes back to filter needs cleaned message on dash). Won't go back into clean mode again until I drive it the next day. I have downloaded FORScan and have ordered the recommended cable FORScan says to use. Once I receive the cable, my plan is to connect to the truck and enable the OCR. I've spent more money in fuel trying to get it to regen then I would have if I just paid to have the OCR enabled.
My 2011 doesn't have the OCR enabled. I have to rely on the computer deciding when to clean it (isn't that convenient!!!). I am getting the message that it needs cleaned. Fuel is full, DEF is full, no codes, drive and get it up to temperature on the freeway, it will go into cleaning mode for about 20 miles then stop ( goes back to filter needs cleaned message on dash). Won't go back into clean mode again until I drive it the next day. I have downloaded FORScan and have ordered the recommended cable FORScan says to use. Once I receive the cable, my plan is to connect to the truck and enable the OCR. I've spent more money in fuel trying to get it to regen then I would have if I just paid to have the OCR enabled.
Signed,
Frustrated!!!
Sounds like a DPF issue. How many miles on your 11?
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