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2014 Cummins ISX in a T680- fan issues ?.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Kentyoung, Jul 15, 2018.

  1. Jul 15, 2018 #1
    Kentyoung

    Kentyoung Bobtail Member

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    Jul 15, 2018
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    so recently got a kw with isx. 460,000 miles. The fan seems to kick on and off at idle just fine. Pulling hills temp climbs to 205-210 before it kicks on. Is this normal.? It will stay at that temp pretty constant until you are out of the throttle then drop back to 185. Oil temps running 225-230 pretty constant. I am a new owner and just trying to get some answers on if there may be an issue. Thanks for any help
     
    Kentyoung, Jul 15, 2018
    Kentyoung, Jul 15, 2018
    #1
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  3. Jul 15, 2018 #2
    Roberts450

    Roberts450 Road Train Member

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    Perfectly normal.
     
    Roberts450, Jul 15, 2018
    Roberts450, Jul 15, 2018
    #2
    shogun Thanks this.
  4. Jul 15, 2018 #3
    Kentyoung

    Kentyoung Bobtail Member

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    Well that’s good to know thank you. Seemed like the oil temp was high too but no buzzers or lights yet lol
     
    Kentyoung, Jul 15, 2018
    Kentyoung, Jul 15, 2018
    #3
  5. Jul 15, 2018 #4
    Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Normal.

    Oil gets up to like 260, you need to pull off idle it down.

    Fan clutch should kick on at 210, back off when it goes down below 210 for coolant temp.
     
    Dave_in_AZ, Jul 15, 2018
    Dave_in_AZ, Jul 15, 2018
    #4
    shogun Thanks this.
  7. Jul 15, 2018 #5
    Kentyoung

    Kentyoung Bobtail Member

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    Thanks sir I appreciate the input. Learn as I go lol
     
    Kentyoung, Jul 15, 2018
    Kentyoung, Jul 15, 2018
    #5
  8. Jul 16, 2018 #6
    KTM042974

    KTM042974 Bobtail Member

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    Jul 16, 2018
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    Oil will always run hotter than yourcoolant temp.
     
    KTM042974, Jul 16, 2018
    KTM042974, Jul 16, 2018
    #6
  9. Jul 16, 2018 #7
    Kentyoung

    Kentyoung Bobtail Member

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    Jul 15, 2018
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    Thanks did a trip out west and it seems to be doing well
     
    Kentyoung, Jul 16, 2018
    Kentyoung, Jul 16, 2018
    #7
  10. Aug 12, 2018 #8
    Rounded_nut

    Rounded_nut Light Load Member

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    Feb 25, 2018
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    If you have a manual switch use that before long grades, no worries about temp then.
     
    Rounded_nut, Aug 12, 2018
    Rounded_nut, Aug 12, 2018
    #8
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