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2015 680 won’t heat up.

Discussion in 'Kenworth Forum' started by JK680, Feb 7, 2021.

  1. Feb 7, 2021 #1
    JK680

    JK680 Bobtail Member

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    Feb 6, 2021
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    Hi new to the forum,just picked up a 2015 680 with the MX 13. Temperature will not get any higher than 125 and not blowing much heat. Wondering if thermostat might need to be replaced. Thanks
     
    JK680, Feb 7, 2021
    JK680, Feb 7, 2021
    #1
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  3. Feb 7, 2021 #2
    kemosabi49

    kemosabi49 Trucker Forum STAFF Staff Member

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    Probably does. You're not doing that engine any favors running with the temps that low either.
     
    kemosabi49, Feb 7, 2021
    kemosabi49, Feb 7, 2021
    #2
  4. Feb 7, 2021 #3
    PoleCrusher

    PoleCrusher Road Train Member

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    It's possible. You can take a big piece of cardboard, stick it between the CAC and radiator. Take it for a drive and see if it heats up. If so, then you have a thermostat stuck open.
     
    PoleCrusher, Feb 7, 2021
    PoleCrusher, Feb 7, 2021
    #3
    Flint1 and cke Thank this.
  5. Feb 7, 2021 #4
    JK680

    JK680 Bobtail Member

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    Feb 6, 2021
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    Ok thanks for the reply, hopefully not a major job.
     
    JK680, Feb 7, 2021
    JK680, Feb 7, 2021
    #4
  7. Feb 8, 2021 #5
    JK680

    JK680 Bobtail Member

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    Feb 6, 2021
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    2 new thermostats did the trick.
     
    JK680, Feb 8, 2021
    JK680, Feb 8, 2021
    #5
    kemosabi49 and God prefers Diesels Thank this.
  8. Feb 8, 2021 #6
    God prefers Diesels

    God prefers Diesels Road Train Member

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    Thanks for the follow up. Many just roll on and leave the thread hanging.
     
    God prefers Diesels, Feb 8, 2021
    God prefers Diesels, Feb 8, 2021
    #6
    Flint1 Thanks this.
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