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  1. J

    Cylinder 1 misfire

    What ended up happening with your issue? I have a 2015 with the 6.4l, noticed the clatter, and then noticed it was only doing it with MDS engaged. I disabled MdS and no clatter. A day later got the flashing check engine light, PO301 code for cylinder 1 misfire, truck shut down, and motor won’t...
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