2015 680 won’t heat up.

Discussion in 'Kenworth Forum' started by JK680, 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
     
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  3. 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.
     
  4. 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.
     
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  5. 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.
     
  6. JK680

    JK680 Bobtail Member

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    Feb 6, 2021
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    2 new thermostats did the trick.
     
  7. 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.
     
    Flint1 Thanks this.
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