DD15 emissions system maintenance

[Rawze]

(07-20-2022 )Bengy88 Wrote:  ...
I agree that the egr systems need to be cleaned on every engine and that soot does build up in every engine, and the engine does create 80% of problems with the aftertreatment side. All I was saying is chances are that he will not just go to his engine and start cleaning things and fix his problem. He might fix what caused his problem, and he definitely will prevent future problems. I doubt cleaning the egr system will repair a bad temp sensor, a leaking def doser, or contaminated def. Also These engines give a lot of injector and egr valve issues, even a few one box issues that just programming will fix. All I’m saying is you can clean all you want but even if there is a problem that cleaning will fix you still need to know what was damaged and causing the service after-treatment message. Without dddl, or even jpro or nexiq etechnician you are fighting a ghost just like with any other engine. In my opinion it’s always easier to find what’s damaged and then what caused the damage. It’s crazy to look for what caused the damage without even knowing what’s damaged.

Then your statement above was a bit mis-leading. As I read it ...,. It implied that Detroits in general do not need regular maintenance of the egr systems. That, or it implies to not bother with any of that stuffs.. because it won't fix anything. That is how it kind of reads. - So in contrast, you clarified this. Thanks. ... It is nice to see that you are an the same page about things as I am, and I completely agree that in this persons particular case.. maybe it will not stop the immediate faults, but to suggest to not bother with any, likely needed, engine maintenance, was why I pointed it out.

(for truck owners who come along in the future reading this)...
That stuffs DOES MATTER.. and DOES NEED TO BE DONE regularly... and if it has not been done.. then it needs to be included, right along with solving any immediate issues, so that problems do not come back. There is nothing worse than making the problem go away just to end up on the side of the road again in 2 weeks and your late on a load.. yet again.

(my rant against the OEM's)...
--- and THAT IS EXACTLY WHAT IS WRONG with these goddam$mn OEM repair shops!. - They put out the fire only enough to get the check engine lights to go out and shove someone out the door!. Never addressing the underlying causes of anything any more.. and then the truck owner suffers all the wasted time, moneys, missed loads, customers that are piss#edd off due to frequent break-downs, and repeating failures that mostly can be avoided by simply taking the time to do the extra steps to actually "fix and service everything related" along with the initial issue.