| Desperate Trucker Owner.... SCR Melted |
| 11-11-2025, (Subject: Desperate Trucker Owner.... SCR Melted ) Post: #1 | |||
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| Desperate Trucker Owner.... SCR Melted ok... Here comes the sob story... its fucking stupid.. and im sorry for even putting this here but i need some help Truck has been down for the best part of 4 months... issues galore from me trying to swap my 12 speed eaton endurance for an 18 speed.. eaton is very unhelpful btw.. then with my truck sitting htere so long the carbon build up on the turbo solidified, and nuked my turbo... ok.. lets shorten this.. im 22k in repairs on my truck in 4 months, pick up the truck yesterday and the DPF is split... turns out my SCR Melted... ok.. I need to de-mandate my truck.. im in the middle of a load.. and just need it to run until i can get these next two deliveries.. or im out of business... anyone have any input they can offer? 2020 international LT with a cummins x15.. I have a DLA2, and could get my hands on insite.. and in cal and all the rest.. just need to understand what i need to do to get it done .. cant afford a monster derate.. thanks tony | |||
| 11-11-2025, (Subject: Desperate Trucker Owner.... SCR Melted ) Post: #2 | |||
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| RE: Desperate Trucker Owner.... SCR Melted I highly recommend to read how to maintain those systems and keep them running. EGR tuneup still has to carried out regardless what you decide to do, fix it or get rid of the problems. http://rawze.com/forums/showthread.php?tid=27 If you live in a foreign country where it is legal to do so you can get started here by pulling the programming and having it done by somebody or yourself and sending current programming for a review. http://rawze.com/forums/showthread.php?tid=8425 | |||
| 11-11-2025, (Subject: Desperate Trucker Owner.... SCR Melted ) Post: #3 | |||
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RE: Desperate Trucker Owner.... SCR Melted (11-11-2025 )mikkhh Wrote: I highly recommend to read how to maintain those systems and keep them running. EGR tuneup still has to carried out regardless what you decide to do, fix it or get rid of the problems. appreciate your input.. i still am unsure of how i went from a perfect functioning aftertreatment system to this while my truck was in the shop (i had no issues prior to this, low exhaust pressure, low soot levels everything looked good) and now it looks like melted plastic | |||
| 11-11-2025, (Subject: Desperate Trucker Owner.... SCR Melted ) Post: #4 | |||
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| RE: Desperate Trucker Owner.... SCR Melted How much miles it has? Has the IMAP and back pressure sensor been replaced already with brand new genuine ones? | |||
| 11-11-2025, (Subject: Desperate Trucker Owner.... SCR Melted ) Post: #5 | |||
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RE: Desperate Trucker Owner.... SCR Melted (11-11-2025 )evilGTO Wrote: ... Your post there is a lot to unpack. - First of all, that (I assume its a noregon branded)-DLA2 adapter you mentioned. They are notorious for being unable to be used to re-flash/ de-mandate the ecm properly, and is only partially useful for looking at trouble codes. I have one here myself that I purchased a while back by mistake, not knowing any better, and its complete trash. - You need to get yourself a cummins adapter kit (usually around $300~ish), the chiuneesium units work fine. That or get a genuine Nexiq (around $700+ or more) adapter. == And you did not mention how many miles/age of the truck/engine but i can tell from your complaints, it has a lot of miles/run-hours on it. - Next, if someone's truck was down for several months, that was the perfect opportunity for them to do a LOT of likely neglected maintenance on it instead of sitting around tinkering with the tranny situation. I know that is what I would have none .. stayed busy doing things that were going to make me more moneys and improved up-time. Things like ... == Pulling all the cans and having them baked, de-ashed, etc. - Due by the 400k~ish mileage mark. == Doing a full EGR -tune up to it,... Like pulling all the intake and egr systems apart, clean them all out, replace old sensors, clean or replace the Doser injector(s), etc.etc. - Due every 250k miles ~ish for a keeping healthy, trouble-free engine and emissions system. info: https://rawze.com/forums/showthread.php?...d=97#pid97 == Do the overhead valve adjustment, and a leak-down tests on the fuel system,.. repairing anything found wrong with it. - due every 250k miles~ish. info: https://rawze.com/forums/showthread.php?...3#pid75483 So ... Sure, there is a lot more that could have been done, instead of neglecting all these things and more ... and hind-sight is typically the mother of all knowledge at some point. I mention all this stuffs as an example towards other people reading this thread so far .., of HOW NOT TO LET YOUR S#$IT JUST SIT AROUND, WHILE YOU DO LITTLE TO NOTHING TOWARDS PREPARING FOR THE BEST UP-TIME POSSIBLE, NEGLECTING ALL OTHER MAINTENANCE, ETC.. WHEN OTHER REPAIRS TAKE A LONG TIME TO COMPLETE. ... Because that is exactly what it sounds like was done in your first post. -> A turbo that is carboned over = The result of severe engine egr-system neglect. -> A Melted DPF/SCR = The result of severe engine egr-system neglect, particularly letting the Doser injector behind the turbo get sooted up and then bleeding fuel into the exhaust,.. causes the DPF, SCR, or other component to melt when all the pooled-up fuel finally ignites. - That or leaky injector(s) can cause the same issue on newer model engines with no Doser. - Every bit for your issues point directly to severe preventative maintenance neglect, and then everything happening all at once. I.E.> Most truck owners learn all this the hard way, after its too late, ... and this is exactly also WHY 80%+ of all owner operators these days fail (or struggle badly) at owning a truck. - A severe lack of knowing how to own and operate a truck past simply driving it and changing the oil... then they only start to learn some of it after all the repeating failures, and they are now desperate and broke. At the end of the day though ... all the educational content of "how not to do things" aside, this does not fix your current situation. The question is what you are going to do moving forward?... == First of all, you need to STILL do the much of the engine tune-up work on it .. replace IMAP, exhaust BP sensor, etc.. on the engine side of things, even if you decide to de-mandate it, because no 'custom' programming is going to 'miracle' that engine into into running great again, nor is it going to miracle the turbo into repairing itself. Regardless of a de-mandate or not ... You will still need that VGT turbo operating correctly to run the engine properly, and any fool that would even suggest to you tell you otherwise, is completely clueless about how these modern engine work. - Send the turbo to a turbo-shop to have inspected, cleaned out, etc. re-balanced properly, etc.. or replace it if it has more than 500k+ miles on it. The typical mileage lifespan range of a VGT is 600k (heavy haul) - 800k(light/normal duty) or equilevent hours, or longer if cared for properly + preventative maintenance. There again ... preventative maint. is the key to keeping major costs like these down. - If you still want to de-mandate it, assuming you live ion a country where that stuffs is ok to do,... - Get a cheap inline-6 adapter kit off Amazon or something, + Insite, + Calt$erm, and then here is some related info: https://rawze.com/forums/showthread.php?...5#pid72945 .. Otherwise, I suggest that the melted components be replaced, all other EGR and other tune-up work done on the engine itself, that caused all the failures and melt downs to begin with, ... getting the rest of the after-treatment systems/cans cleaned out and baked properly, aft. sensors replaced, etc. User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!. | |||
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| 11-11-2025, (Subject: Desperate Trucker Owner.... SCR Melted ) Post: #6 | |||
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| RE: Desperate Trucker Owner.... SCR Melted I fully appreciate the insight you have here.. I want to say i'm not one who generally fails to maintain my equipment i look at it as an investment. I have only had the truck about 130k miles.. so i can only attest to what i have done since i got it, I have done the overhead (twice once hot, and once cold was dissatisfied with the hot adjustment), and have done all required maintenance.. soot levels were very low, to low in each of my reports from JPRO, and i had come to find out that the previous company replaced the full aftertreatment about 300,000 miles ago due to some contaminated DEF (thats the story i got.. no idea how true it is).. I will say that i'm new to the heavy truck world, and frankly new to having vehicles this high milage so i have not heard of doing a EGR Tuneup.. but it sounds like a reasonable suggestion and something i will definitely perform in the future.. so that does explain the turbo. now for the SCR i have had a few revelations about that since my panic induced post here. The dealer damaged my after treatment system, allowing a small gap between the DPF and the SCR.. This allowed air, and excessive DEF to be pumped in superheating the SCR, causing the SCR to melt, and DEF to be sprayed all over everything. as it still shows low to very low soot levels in the DPF i am hopeful that is the cause there. As for moving forward.. Delete, no delete, next truck this truck.. i will keep the ide a of an EGR tune up in mind :) oh miles are at 635k i cant check my idle hours at the moment... i can only attest to how i use the truck, and i idle very little.. i have an EPU so i don't have to.. although i do end up idling a couple hours a night just due to battery drainage haha.. like i said i tend to not be one (at least so far in my career as an owner op) to shy away from even recommended maintenance.. I'm a better now than later kind of guy.. when i know what i need to do.. I appreciate all your input though.. i will take it to heart and try to keep up on this stuff even better... | |||
| 11-12-2025, (Subject: Desperate Trucker Owner.... SCR Melted ) Post: #7 | |||
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| RE: Desperate Trucker Owner.... SCR Melted Why keep idea of EGR tuneup in mind? You HAVE TO carry out EGR tuneup as soon as you can, not keep it as an idea. And you need to buy brand new GENUINE IMAP and back pressure sensor, whether or not you decide to fix or eliminate those problems. Maybe DPF is showing low fill levels because DPF differential pressure sensor is old and worn too? | |||
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