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presure

  1. B

    John deere 450D lc low fuel rail pressure

    I have a john deere 450D with 13200 hours. Iv been fighting issues with 1239-1 code. I have changed filters / overflow valves checked all screens all lines presure at injection pump at idle is around 37 or so hard to tell because it jumps around so much ! And I don't know if that's normal...
    • Brad93
    • Thread
    • 1239-1 450d excavator fuel hitachi john deere pcv presure wiring
    • Replies: 5
    • Forum: Excavators
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