Cummins isx cm871 fault 2637

[Mrt800]

(10-30-2022 )Rawze Wrote:  Engine issues cause DPF issues.. have you done a thourough EGR tune-up on it yet?

ref: https://youtu.be/FhJxpyS5MpY

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WOW!>.. that DPf looks done for... how old is it?.


It is time to remove it and the DOC and take them to heve them baked out, de-ashed, and flow tested. Can be done by an OEM steslers$it for a few hundred bucks.



Also that looks like oil intrusion.. someone needs to pull the exhaust manifold away from the head and check to see if valve guide seals are getting wet on a cold start.