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2006 700j John Deere false temperature reading issue

MattR ยท 2023-06-11 11:55

700J false coolant over temp. 700J stop light on, the check service code light off and coolant engine temp guage at maximum, but the actual temp of the block on the right side below the head is at 160 F. The top of the radiator is cool to touch, and the radiator cap can be opened without fear of scalding. JD dealer said to see if there's any codes by cycling the select button between hours and voltage until codes appear, but no codes show up. When turning key on all dash lights and guages cycle as they should.Should also add. The problem will go away in an instant and you can run the rest of the day without issue.

Replies7
  1. #1Diesel Dave2023-06-11 17:06

    The Deere guru will be asking for a serial number .

  2. #2Vetech632023-06-11 17:19

    LOL

  3. #3Diesel Dave2023-06-11 17:29

    Whats so funny ?

  4. #4Vetech632023-06-11 18:16

    MG is the Deere God. Your his son. The rest of us are mere servants

  5. #5MattR2023-06-11 19:27

    Serial number is T 0700jx 111276

  6. #6mg23612023-06-12 05:13

    Sounds like an engine temperature sensor issue, or a wiring issue to the sensor. On some occasions with the older DE10 fuel systems, the original engine controllers had issues with the coolant temp circuit. Check your messages.

  7. #7MattR2023-06-12 15:27

    Thank you again for the help. Have a sensor coming for tomorrow