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  1. M

    Cat 299 xhp def issues

    Ahart, thank you I appreciate it.
  2. M

    Cat 299 xhp def issues

    Getting message after running for about 20 minutes, the machine has been sitting for about a month. Serial DX201819 and for the life of me I can’t find the def filter to change it. I did manage to get the old def out with a pump. One mechanic friend said maybe a nox sensor. Ideas?
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