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1994 3406e Cat Coolant

Discussion in 'Ask An Owner Operator' started by rslivelyjr, Apr 18, 2024.

  1. Apr 18, 2024 #1
    rslivelyjr

    rslivelyjr Bobtail Member

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    Ok can I bypass the low coolant sensor ? It’s a 4 wire sensor ? If not would it give me any problems if I just unplug it ? Also, my stop engine light comes on at 200F. Any suggestions on that? Thanks
     
    rslivelyjr, Apr 18, 2024
    rslivelyjr, Apr 18, 2024
    #1
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  3. Apr 18, 2024 #2
    062

    062 Road Train Member

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    You may have two temp sensors, one for the dash and the other for the ecm. It wouldn’t be a bad idea to confirm the engine temp with a infrared temp gun.
    @Big Road Skateboard may know of a way to bypass sensor.
     
    062, Apr 18, 2024
    062, Apr 18, 2024
    #2
    blairandgretchen Thanks this.
  4. Apr 19, 2024 #3
    snowwy

    snowwy Road Train Member

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    The gauge or sensor probably isn't accurate. Shut down is 225* for my 05 cat.

    My 05 I could unplug the radiator reservoir sensor. Top tank. It went bad and wouldn't let the engine stay running.
     
    snowwy, Apr 19, 2024
    snowwy, Apr 19, 2024
    #3
    Tug Toy Thanks this.
  5. Apr 19, 2024 #4
    wore out

    wore out Numbered Classic

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    Take it to a shop with CAT diagnostic equipment have them plug it up and turn the low water sensor in the ecm.

    just to say it the low coolant sensor is always in the tank…..temp sensor is always in the head. I also don’t condone turning such features off in stead of fixing them even to get to a shop but to each their own
     
    wore out, Apr 19, 2024
    wore out, Apr 19, 2024
    #4
    Deere hunter, Bean Jr. and exhausted379 Thank this.
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