Cummins X15 after treatment issues

[Envirotec]

(06-19-2024 )marek4792 Wrote:  Do you know if your exhaust manifold/turbo gaskets are leaking? These things are good about not leaving any soot behind when they leak. Unless you cold start your truck and spray it down with soapy water you'll never find them. I found one on mine and after removing the manifold found another I never knew about.. Just something to consider.. If removed check for heat cracks...

Had a few exhaust leaks. Nothing on manifold luckily. Used soapy water as you mentioned. But this was way before I had any issues with Aftertreatment system