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  1. M

    CAT 239D EGR Valve Error

    Hello- Due to sickness, my 239D has been sitting unused for about 4 months. I was finally able to start it back up last week. When starting, I got the following error message, along with loss of power when revving the engine: 2791-10 Engine Exhaust Gas Recirculation (EGR) Valve Control...
  2. M

    CAT 239D creep mode not working

    Hello- Just purchased a used CAT 239D and am in the process of checking/inspecting all functions. I can't seem to get into creep mode after pressing the bottom left button on the LH joystick. Are there any inspection points on the machine that I should know about in order to diagnose the...
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