2015 Volvo d13 500 hp

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by usaexpress, Dec 12, 2019.

  1. usaexpress

    usaexpress Bobtail Member

    11
    0
    Nov 7, 2019
    0
    Heath blowing cold on low rpm at 700 at normal engine temperatures 180F when I increase rpm blowing hot as is supposed to
    I replaced thermostat and water pump still same problem blowing cold on idling
    What could be the problem?
     
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  3. magoo68

    magoo68 Road Train Member

    3,393
    5,379
    Jun 11, 2011
    st malo mb canada
    0
    Maybe a water valve partially closed
     
  4. SunnyRoadTrucker

    SunnyRoadTrucker Bobtail Member

    38
    15
    Sep 1, 2014
    Elk Grove Village. IL
    0
    That's what usually happens when air gets trapped in coolant system!
     
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