High oil temperature Volvo Vnl 780

Discussion in 'Volvo Forum' started by umarbek98, Jun 3, 2020.

  1. umarbek98

    umarbek98 Bobtail Member

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    Jun 3, 2020
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    Hello everyone, I started having this issue yesterday where I have the information warning come on and high oil temperature. I thought it maybe because it’s around the time I need oil change I changed my oil and still my oil temperature is going above 270 Fahrenheit
    And stop warning ligh comes on and truck looses power and after stopping shuts off.
    2016 Volvo VNL 780 D13 I shift
     
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  3. umarbek98

    umarbek98 Bobtail Member

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    Jun 3, 2020
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    Coolant temperature is normal when I start driving 60+ mph oil starts going high temperature when I go below 60 it goes back to normal
     
  4. Doealex

    Doealex Medium Load Member

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    Does your fan kick in?
     
  5. umarbek98

    umarbek98 Bobtail Member

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    Yes it does kick in and fan is working perfectly fine
     
  6. MM71

    MM71 Medium Load Member

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    I am not a D13 aficionado so I should keep my mouth shut. But, if your water temp is not high. Temp your oil pan with a infrared thermometer, see if its similar to what the sensor is reporting. If you feel like throwing parts, I would say replace oil temp sensor first. If that doesnt fix your issue, you have a plugged up oil cooler or a spun bearing causing all the heat.
     
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  7. umarbek98

    umarbek98 Bobtail Member

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    Will try it out thanks for the information
     
  8. Trucking in Tennessee

    Trucking in Tennessee Road Train Member

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    Prepare to lose a rod bearing. Oil temp high, coolant normal.....
     
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  9. umarbek98

    umarbek98 Bobtail Member

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    I am confused could you explain your answer little more pls thank you
     
  10. Trucking in Tennessee

    Trucking in Tennessee Road Train Member

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    When a rod bearing is hurt, it heats up the metal, thus heating up the oil. The coolant won't reflect that in some cases. What do you consider running hot as far as oil temp?
     
  11. umarbek98

    umarbek98 Bobtail Member

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    Jun 3, 2020
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    I replaced the piston jet cooler and cleaned the oil separator with brake cleaner and the truck has been running fine with heavy load no problems 2nd day
     
    KB3MMX and Doealex Thank this.
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