2018 HX International aftertreatment

[Barbz18]

Hello I am working on a 2018 HX international with a X15 cummins engine. The truck came in barely running would die within a minute or so of idling. White/clear smoke was coming out of the stacks. I disconnected the turbo down pipe and the truck ran fine afterwards like it was able to breath. Found the DPF to be plugged up bad causing the truck to die, baked/puffed the DOC and DPF and noticed that the DPF was still plugged even after cleaning. Replaced dpf and reinstalled with the doc, new gaskets and clamps. I made sure the gaskets were properly sealed as well. After starting the truck and revving I hear and see a loud exhaust leak coming from the dpf and doc clamps area. A lead tech advised that it could possibly be the scr that is also plugged up/damaged causing the exhaust leaks from the clamps area. Anyone ever come across this or think it's possible that the scr would cause this issue?

Also found the main reason for the plugged aftertreament system was caused by someone installing the wrong type of clamps on the cac to turbo pipe causing boost leak/soot problem.