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Int’l Durastar cabin heat not working well.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by wlhequipment, Oct 29, 2022.

Page 2 of 2
  1. Oct 30, 2022 #11
    wlhequipment

    wlhequipment Bobtail Member

    49
    18
    Aug 16, 2022
    denver, co
    0
    170 does seem too cool. I can hold my hand on the rad hoses, and I shouldn’t be able to do that to the hot side. That side should be hot enough I have to pull my hand away after a few moments, but it just doesn’t get that hot. I’m going to replace the thermostat again. Maybe I got a bad one. But yeah there’s definitely no valve that I can find.
     
    wlhequipment, Oct 30, 2022
    wlhequipment, Oct 30, 2022
    #11
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  3. Oct 30, 2022 #12
    Lazer

    Lazer Road Train Member

    1,830
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    Jan 22, 2017
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    What engine? A DT466? Try a 195 degree thermostat.
     
    Lazer, Oct 30, 2022
    Lazer, Oct 30, 2022
    #12
  4. Oct 30, 2022 #13
    wlhequipment

    wlhequipment Bobtail Member

    49
    18
    Aug 16, 2022
    denver, co
    0
    466e, and I don’t see a 195 for it.
     
    wlhequipment, Oct 30, 2022
    wlhequipment, Oct 30, 2022
    #13
  5. Oct 30, 2022 #14
    Lazer

    Lazer Road Train Member

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    Get one close to that, but not below 190
     
    Lazer, Oct 30, 2022
    Lazer, Oct 30, 2022
    #14
  7. Oct 30, 2022 #15
    BoxCarKidd

    BoxCarKidd Road Train Member

    4,525
    6,586
    Aug 26, 2014
    0
    Unless someone added them those do not have valves on the engine. Not sure about an inline valve before the heater core but it may have one.
     
    BoxCarKidd, Oct 30, 2022
    BoxCarKidd, Oct 30, 2022
    #15
  8. Oct 31, 2022 #16
    Lazer

    Lazer Road Train Member

    1,830
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    Jan 22, 2017
    0
    Learned something new everyday, every DT466 I have been around has had at least 1 water shut off valve.
     
    Lazer, Oct 31, 2022
    Lazer, Oct 31, 2022
    #16
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