2015 Volvo d13 overheating and build pressure in coolant system please advise what is the problem

Discussion in 'Volvo Forum' started by usaexpress, Nov 7, 2019.

  1. usaexpress

    usaexpress Bobtail Member

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    Nov 7, 2019
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    Did change thermostat fan is working please advise what problem is this? Lossing power and overheating please advise?
     
  2. craig_sez

    craig_sez Road Train Member

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    Is the rad and air to air clogged with debris by any chance,rad itself on its last days...If your driveing it you should have some basic understanding of it...
     
  3. Midnightrider909

    Midnightrider909 Road Train Member

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    All you can fix yourself is cleaning the fins on the radiator. Either the coolant isn’t circulating or isn’t getting cooled off during it’s passage through the radiator.
     
  4. usaexpress

    usaexpress Bobtail Member

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    Nov 7, 2019
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  5. Midnightrider909

    Midnightrider909 Road Train Member

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    If the radiator fan is working and the radiator is clean then you have a circulation issue. I don’t know much about trucks but in cars if the thermostat isnt opening the engine will overheat because the coolant never makes it to the radiator. Is there someway to check if the radiator is hot while you are having your overheating issue in the engine? If the radiator is cool while the engine is overheating the thermostat is likely at fault. The water pump might have issues too.
     
  6. craig_sez

    craig_sez Road Train Member

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    Did you see the stat rateing you put in,Pull it and test it...System clogged somewhere,all the hoses get hot??
     
  7. usaexpress

    usaexpress Bobtail Member

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    Nov 7, 2019
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    Radiator temperature and hose are same I have some faults on diagnostic
     
  8. SoCalRed

    SoCalRed Medium Load Member

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    Take it to a shop. Could be water pump, could be head gasket. All we can do is guess.
     
  9. Socal Xpress

    Socal Xpress Road Train Member

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    Los Angeles, Ca
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    Best thing for you to do is get it properly diagnosed.

    But these things will over pressurize the cooling system.

    Cracked egr cooler
    Bad air compressor head gasket
    Injector cups

    Good luck
     
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