Originally Posted by cruizerEd
SCR is probably Selective Catalytic Reduction. Maybe it is the issue discussed in this article.
If you know more about this "campaign", especially what the time frame is please advise.
I just got off the phone with Cummins service in Gainesville GA because of a probably unrelated DEF code. I didn't get much information but apparently there is some time frame so you should get the issue addressed soon rather than later.
As explained to me the part number typically can not be determined until some disassembly is performed. Once disassembled Cummins will not pay for assembly until the new part is available. Without knowing the part number Cummins can not say how long it will take to complete the work. It can be weeks before the part is available. Not particularly impressive service.
There are several different recalls out there, so let's be sure we are talking about the one you described. It is for the SCR (DEF) system and nothing more. It is because a system component deteriorates and the vehicles do not meet emission standards
. This recall has nothing to do with DEF sensor heads, or derating. It has nothing to do with DPF issues either.
I cannot speak to Cummins' response to your questions. One would think the engine serial number would suffice to determine if your engine was equipped with the defective part, but obviously, that is not the case. I do understand the need for disassembly and inspection if there were different model faulty parts installed over the years. That would mean a time delay.
This recall has been in effect since July, 2018, but it's not clear if there is a closing date, given it's an EPA/CARB instituted recall.