regeneration required, 100 percent full, now what???

[Whiteranch04]

We cleaned out the egr valve about 6 times with hot water and soap and soaked it in cleaning solution and hot running water in the sink, we also changed out the crankcase filter at the same time, we cleaned out the crossover pipe with bottle brushes and the same cleaner we made up and soaked it and ran a rope back and thru it with a knott to remove all kinds of carbon buildup, we did this several times and got the egr clean even better by using paint brushes and toothbrushes on the valve and valve stem, we put the truck back together today and went for a test drive, the cel light never went off but the truck runs great but has 100 per cent full,exhaust system, regeneration required on the overhead display, we tried to erase the codes with our autozonescanner but the p242f code remains. I am wondering if or when this truck will go into limp mode again now. I am 100 miles from a dealer in Devine Texas where i take it to get it serviced. The truck has 112k miles on it and am driving the old 2001 5. 9 while trying to figure out how to make it regen down here at the ranch instead of taking it to a dealership and getting a big bill and not even fixed like last time it went in. If i could just load it up on a trailer and haul it up there can they make the truck go into regeneration and check for o2 sensors dpf ruined plugged up beyond repair or what will the drill be?? I dont want to pay $4000 to $6000 that might be charged to me if they go in and replace everything until the truck is running ok again on my dime. I guess the question is what would you do if this truck was yours?? I am thinking haul it up there let them come up with a repair solution by hooking it up to there solftware reader and see what it says?? If the dpf needs replacement and the egr, etc etc I will just load it up and bring it back home and order the smarty or h and S delete kit with tuner and exhaust kit egr block off etc etc and try to replace it down there and remove the cel light and codes by installed the tuner, egr blockoff kit and turbo back new exhaust without the dpf and factory muffler. Gees, i Need this truck to go to chemo daily and here it trying to strand me again like the last time it tryed to burn up the ranch and had to be towed in 200 miles to dealer, what i dont get is they swore with the new latest reflash and the dpf replacment that this would be the last of my problems, we had the egr cleaned or replaced and the cc fillter replaced at 66k miles the last time and here it is again at 112,000 miles bucking and pitching codes and limp mode. Is there anything i can do today or tormorrow like leave it running for hours or go drive it 60 miles around an daround town and try to get it into regen?? i am wondering outloud when will it go into limp detuned mode again now since we cleaned the egr and replaced the cc filter and all of the connections with electrical cleaner?? Can anything think of somehting i have missed?/ Thanks in advance for any tips hints links or advice.

 

[AH64ID]

What year truck, and how current is the flash?



You shold be able to let it idle and after about 5 minutes (once warm) it will go to 900 rpms and regen. Or get out on the fwy and drive 65 for a long while.

 

[MChrist]

I don't know all the details, but I would be seriously considering an emission-ectomy. I think H&S has what you are looking for. You seem to be out of warranty, too.
If you don't have emission inspections in your area, I would definitely consider this.

 

[mpaulson]

I'm with MChrist, if you don't have to pass test etc like some unfortunate people, it won't give you any trouble on the shelf in the garage. You will run way cooler in the egt. ranges with the stuff gone, like 150 degrees, which is good for towing. I just went trough a "catalist full" situation, I DON'T HAVE ONE!!!!, it turned out to be the fuel rail relief valve letting off the presure prematurly and any problem with the fuel system will automatically trip the dpf warnings reguardless if there is a problem there or not.

 

[Hoefler]

It won't go into regen while idling. The only way to get it to regen at idle, is to manually make it do it with the Star Scan tool. If it will drive, run it down the highway and let it regen like it is suppose to.

 

[AH64ID]

It won't go into regen while idling. The only way to get it to regen at idle, is to manually make it do it with the Star Scan tool. If it will drive, run it down the highway and let it regen like it is suppose to.

Only if it's a 07. 5 or early 08 that hasn't been flashed since mid 08. I have seen it myself on a 2010. They will regen in park.



"This feature may help to reduce the

accumulation of soot in the exhaust aftertreatment system when the engine is idling for

an extended period of time. Briefly how this feature works. As needed, the engine enters an idling mode which dramatically reduces the rate of soot accumulation in the diesel particulate filter (called “Net Zero”). Further, under extended idle periods of **5 minutes or longer**, the engine enters a mode which reduces the amount of soot accumulated in the diesel particulate filter (called “Net Reduction”). While in these modes, the idle speed increases to 900 RPM for a period of time. The idle speed may return to normal idle speed and then return to 900 RPM to repeat this cycle during very long idle periods. These modes occur automatically depending on the need to regenerate the DPF as long as the vehicle is not driven over 20 MPH or operated at high load. If the vehicle is driven over 20 MPH normal mobile desoot will occur automatically. "

 

[Hoefler]

The programing will not let it regen while the truck is stationary, whether or not the idle speed is raised or not. Last winter, my 2010 would not , will not regen at idle. After letting it idle while shoveling snow in front of our fire houses, my truck had the filter full regen needed message. But it will go into regen at 35mph.

 

[AH64ID]

Was it at operating temp?



I have seen a 2010 go into regen at idle, exactly 5 minutes after it was stopped. But it was at operating temp. If yours wont go into regen at idle you need to make a trip to the dealership, as something isn't correct.

 

[Whiteranch04]

The truck is a 2007 and has been flashed 4 times and i think it has the latest update but cant swear due to things were going great and i quit keeping up until now with the 6. 7 egr problems. I have it loaded on a trailer to haul into the dealership to see if they can get it regen with the dodge scan tool. If it does not go into regen at the dealership i am telling them i just want a repair solution before they start rebuilding the egr system and ordering a new $2200 dpf. I just want to know what is exactly wrong with it right now and how to fix it, if its going to be thounsands again on my dime its going to get a Smarty or H S delte kit with programmer and move on to no more stuck egr and nobody who can fix it anywhere after hauling it in 200 miles. Its a shame the Gov did not make Dodge or Cummins infor the buying public how to service there own egr system and make them have a egr valve exchange and dpf exchange program so I would not have to spend money fixing the truck so it will not break down and cost money for a flawed system. Thanks for all of the replys will keep yall updated on what was wrong with it and what i did with it in the end to get it running again.

 

[AH64ID]

Here is where the Engineer's tell TDR about Net Zero



https://www.turbodieselregister.com/forums/2107233-post79.html

 

[Hoefler]

If you read the article that you refer to, it is about soot reduction mode for extended idle and low speed operation.



"If a regeneration is needed, and the truck idles for 5 minutes while parked, the truck will enter the net reducing idle mode. During this time, the idle speed will increase to 900 RPM, and the engine operation will change such that the soot level in the DPF is gradually reduced. "



It is not a regeneration. Totally different.

 

[AH64ID]

It is not a regeneration. Totally different.

Not really. . Reducing soot in the DPF with added fuel is an active regeneration. Just becuase it does it at idle and a little differently doesn't negate the fact that its a regen. Re-read what you quoted, it tells you how it regens, the word regeneration is even used...



The whole purpose behind it is to offer a regen for the folks that spend time in the woods and can't get up to speed. In fact the only reason I bought an 05 in Nov 07 was the fact that Dodge didn't have the net reduction out yet and I would have gone into limp mode on hunting trips.

 

[BLNRAY]

not sure about 6. 7 but when an ISL regens the exhaust tempe exiting the dpf can get as high as 12-1300 degrees,not sure i want that to happen in the woods.

 

[Hoefler]

"If a regeneration is needed, and the truck idles for 5 minutes while parked, the truck will enter the net reducing idle mode. "



It is entering net reducing mode, not regeneration! 2 totally different operations.



Read what is said.

 

[Hoefler]

As I stated in a previous post in this thread, my 2010 had the filter full message while I let it idle for a little over 4 hours while shoveling snow. During this 4 hour period, it was only drive approximately 20 miles at a crawl in 3-4 mile increments. I have never seen the filter full message prior to this. It did not go away until I was able to drive it at 35 mph for 20 minutes the next day, after the weather got better.

 

[AH64ID]

Your missing the fact that Net Reducing Idle is a form of regeneration... There are 3 ways the DPF can regenerate, Active, Passive, Net Reducing Idle.



Net Reducing is a much slower form of Active to keep the DPF/tail pipe from getting too hot at low/slow/stopped speeds.

It works I have seen it, the exhaust note changes quite a bit too when in this mode.



When you were shoveling snow did the rpms go to 900?

 

[Bob4x4]

I am doing this from my phone so hope I
Did not miss any thing If you have a ck engine
Light on now,many codes will prevent a regen
Fr happening. Your truck should regen at idle IF
The codes were not present

 

[Mikey-KE7LBB]

Delete+smarty!

Delete+forget= no problems!!!



Sorry to hear of your troubles, but I "CUT" my losses long before I had a problem on my 09 based on others having issues with earlier models.



I just wanted to have a truck with an EB and NO troubles that would give me some decent mileage... I have since found that a Smarty and a piece of 4" pipe will work wonders to achieve a reliable rig to do everything that I would expect from a 35k+ truck!!!

 

[SNGLESHOT]

Well Mikey I guess you live somewhere where nobody is going to shove a probe up your tailpipe to check emissions. Here in Western PA we do not have the luxury of deleting all that emission crap. Wishing we could. Be grateful you live in a state that has less regulation.

 

[HBarlow]

Semantics can be argued all day I suppose but my '08 C&C will enter the soot reduction mode at idle. It will idle up and I see the exhaust gas temp rise so it is clearly baking soot out of the dpf. My truck had an AK reflash done back in late '08 by TDR member Mike Mullenax.