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Water temp help

Discussion in 'Ask An Owner Operator' started by Mohtrucker, Jan 13, 2021.

Page 1 of 3
  1. Jan 13, 2021 #1
    Mohtrucker

    Mohtrucker Light Load Member

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    Oct 20, 2019
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    I have a 05 Columbia with a series 60 engine when I’m at highway speeds my water temp gauge goes down to 100 degrees but when sitting idling it will go to above 150. My ac/heater will stop working also but works fine when idling, appreciate any advice I don’t want to pay someone money if it could be solved by changing a sensor or fuse
     
    Mohtrucker, Jan 13, 2021
    Mohtrucker, Jan 13, 2021
    #1
    6wheeler Thanks this.
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  3. Jan 13, 2021 #2
    Spyro2112

    Spyro2112 Medium Load Member

    567
    381
    Mar 17, 2018
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    Ouch
     
    Spyro2112, Jan 13, 2021
    Spyro2112, Jan 13, 2021
    #2
  4. Jan 13, 2021 #3
    Spyro2112

    Spyro2112 Medium Load Member

    567
    381
    Mar 17, 2018
    0
    Thermostat 2 of them
     
    Spyro2112, Jan 13, 2021
    Spyro2112, Jan 13, 2021
    #3
    jsnell, DieselDisciple, AModelCat and 1 other person Thank this.
  5. Jan 13, 2021 #4
    thaistick

    thaistick Road Train Member

    1,416
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    Dec 7, 2014
    OTR/Thailand
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    Second for the thermostats!!!
     
    thaistick, Jan 13, 2021
    thaistick, Jan 13, 2021
    #4
    jsnell and DieselDisciple Thank this.
  7. Jan 14, 2021 #5
    Spyro2112

    Spyro2112 Medium Load Member

    567
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    Mar 17, 2018
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    Might think about new fluid, radiator,, detroit radiator. Michigan
     
    Spyro2112, Jan 14, 2021
    Spyro2112, Jan 14, 2021
    #5
  8. Jan 14, 2021 #6
    Johny41

    Johny41 Road Train Member

    1,192
    1,017
    Feb 10, 2011
    Ontario, Canada
    0
    My guess the thermostat stuck open, coolant goes through rad all the time. When you move at highway speed the airflow passing through rad is overcooling the coolant, when stopped even if the thermostat stays open without airflow temp goes higher. I read that are designed if breaks to fail open, is less damaging won't cause overheating. But if the thermostat is stuck open , engine oil temp drops and moisture won't evaporate can mix with oil causing sludge and for newer engines with DPF low eng temp causes regen problems.
     
    Last edited: Jan 14, 2021
    Johny41, Jan 14, 2021
    Johny41, Jan 14, 2021
    #6
  9. Jan 14, 2021 #7
    Spyro2112

    Spyro2112 Medium Load Member

    567
    381
    Mar 17, 2018
    0
    Filter?
     
    Spyro2112, Jan 14, 2021
    Spyro2112, Jan 14, 2021
    #7
  10. Jan 14, 2021 #8
    Ridgeline

    Ridgeline Road Train Member

    20,734
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    Dec 18, 2011
    Michigan
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    It isn’t anything but the thermostat. One is bad and stuck open.
     
    Ridgeline, Jan 14, 2021
    Ridgeline, Jan 14, 2021
    #8
    lester and Mohtrucker Thank this.
  11. Jan 15, 2021 #9
    snowwy

    snowwy Road Train Member

    19,790
    12,333
    Jul 6, 2009
    0
    Thermostat is what controls the water temp.
     
    snowwy, Jan 15, 2021
    snowwy, Jan 15, 2021
    #9
  12. Jan 15, 2021 #10
    Spyro2112

    Spyro2112 Medium Load Member

    567
    381
    Mar 17, 2018
    0
    Thermostat opens and closes to cool the engine. Fan turns on
     
    Spyro2112, Jan 15, 2021
    Spyro2112, Jan 15, 2021
    #10
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