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Did you get the DPF% screen activated? The truck won’t tell you it’s in a regen cycle unless you do an OCR. The only way to visually tell is your fuel consumption goes up and your DPF % screen goes down.
yes the DPF screen has been activated since I got the truck. I could always see when I was 99% full and after about 5 min i could feel the regen kicking in.
If your DPF is still full, I would take it on the highway to see if the auto regen will eventually kick in. I am thinking it will. If it doesn’t, you can always do an OCR and then take it to the dealer to find out what he changed. Maybe it didn’t kick in today because the parameters weren’t being met. Like yours, mine kicks in about that 5 min mark after the filter reaches 100.
Your truck could of and most likely just engaged its high idle mode. In warmer and colder temperatures, the engine idle may increase to 1100-1200 rpm to maintain cooling or heating of the engine.
I have had a stationary auto regen happen a few times in -30C temperatures though. It’s very rare and in my situation, I drove for a week or so in arctic conditions while never going faster than 30mph. The truck also idled about 8hrs each day in that cold temp. The truck needed a regen and did it stationary.
Well, I think it was more than just high idle - with the knocking, and heat, and faint white smoke, it sounded just like my 6.4... it's been a while but I'll never forget that sound! I just didn't expect it, is all!
Well, I think it was more than just high idle - with the knocking, and heat, and faint white smoke, it sounded just like my 6.4... it's been a while but I'll never forget that sound! I just didn't expect it, is all!
Then it could of been a regen. Like I said, my truck has done stationary auto regens when it needed to. There must be a failsafe DPF full percentage that we can’t see that will activate it. The white smoke is a pretty good indication of regeneration.
Commercial focused Super Dutys have the ability to do a driver commanded regen. Other Super Dutys cannot control this from the factory and the truck takes care of it.
If it says full I would not worry about it. I would not go out on a special drive just to clear it. It is a waste IMO. Others will have different opinions. I think both answers are right. The truck will not allow itself to self destruct by not doing a regen. Think about the trucks in Canada that operate in temps that don't get above 0 F for months on end. Those trucks survive. In the winters in St Louis, I have driven my truck way past a normal regen cycle miles and I can see my % on my dash at 99% and it may take another week of driving in order to start a regen. The reason being was cited above and that the truck has to enter a given set of parameters (mainly temperatures...both of the exhaust temps and to some degree outside temps) in order to do a regen.
Very good question by the OP but I don't believe there is anything to be concerned with and I would drive the truck as your normally would.
Thank you to the OP for letting me jump in and ask my question and to those who answered!!! I remember my 6.4, if you didn't "DRIVE TO CLEAN" that SOB would go into Limp Mode... boy did I hate that truck [when it wasn't deleted ;-)]!
When Deleted & Tuned by Innovative Diesel though... 495hp/985lbs.ft!
Thank you to the OP for letting me jump in and ask my question and to those who answered!!! I remember my 6.4, if you didn't "DRIVE TO CLEAN" that SOB would go into Limp Mode... boy did I hate that truck
I hear ya. My 2008 Ram, every time I came back home from a project that required about a 700 mile drive, as soon as I pulled in my driveway, that damn drive to clean now message would show up. It always popped up at the worst times. That’s system fell of my 2012 Ram before I took possession of it. The system on my 18 350 hasn’t been as annoying as the past system.
Very good question by the OP but I don't believe there is anything to be concerned with and I would drive the truck as your normally would.
The weird situation that OP has going on now is that he had the OCR enabled but did not get the ability to uncheck the auto feature. I haven’t seen anyone just do 1/2 of the procedure required when activating the OCR feature. I’m sure the auto will kick in but part of the reasoning behind activating the OCR feature is so you can stop the auto from kicking in. Frank can’t do that at this point.
Speaking of the Canadian trucks, that is my situation. On my 18 and a few reported others, the DPF % does not work at temperatures -8*C or so. For the entire winter, my truck stays at 0% until it warms up for about 8hrs and then it will start reading the proper % again. Some have reported this while others say theirs works fine throughout the winters. Maybe this is why your truck stayed at 99% for a while. I can still view the correct percentage on forscan. It’s annoying because if my filter screen won’t show the filter as full, I cannot do a normal OCR because the prompt doesn’t come up. I can still do an OCR using forscan procedure.
Then it could of been a regen. Like I said, my truck has done stationary auto regens when it needed to. There must be a failsafe DPF full percentage that we can’t see that will activate it. The white smoke is a pretty good indication of regeneration.
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