Volvo 780, 2013 D13 eng. 500HP I-shift.

Discussion in 'Volvo Forum' started by emilko, Feb 5, 2018.

  1. emilko

    emilko Bobtail Member

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    At cold start in the morning takes forever(2-3 HR) to warm up to operating temp of 172F. Does anyone know why? Coolant level is ok. New coolant tank. Ones it warms up I noticed lot of bubbles coming out when i release cap. Today I got a new code SA 0 SPN 641 FMI 7. No smoke from muffler. Truck still runs well, but for how long? What I should to do to prevent bigger damage. When I ask Volvo mechanic He said instantly: You need a new Turbo. Thank You
     
    Last edited: Feb 5, 2018
    Atlaw4u Thanks this.
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  3. boneebone

    boneebone Road Train Member

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    The thermostats are not opening up, they're staying closed and not letting coolant circulate through the cooling system.

    Most likely you will need to replace the thermostats.
     
    Last edited: Feb 5, 2018
  4. Val77

    Val77 Light Load Member

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    Could be the thermostat, fan clutch or fan clutch solenoid. Is your fan running at all the time when on idle?

    As far as your code......this is the turbo VGTA. Check the photos I've attached.
    Could be the thermostat, fan clutch or fan clutch solenoid. Is your fan running at all the time when on idle?

    As far as your code......this is the turbo VGTA. Check the photos I've attached.
     
  5. Val77

    Val77 Light Load Member

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    I don't know why i can't send the files. But let me try this
     
  6. Kris J

    Kris J Light Load Member

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    It is very important that you have a working thermostat. There where a peculiar answer above about this, or maybe I misinterpreted. The Thermostat is supposed to stay closed and keep the cooling fluid not going to the radiator, until the engine are in working temperature, to have faster warmup. (but maybe that is the message from Boneebone).
    Anyway, running an engine cold long periods or even worse always under working temperature will shorten the life for an engine considerably.
    Bubbles in the coolant tank? When the engine is warm, it is a pressure in the tank, but once you have released the pressure, taken the cap away, there should NOT coming any bubbles, when the engine is running.
    Can't really see what the turbo has to do in this matter. I assume, that you will notice if the turbo is not working properly, because the engine is giving the power you are used to.
     
  7. Rob100100

    Rob100100 Light Load Member

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    Take it to a shop that you trust and have it inspected. Could be a number of things but no one knows. It is always more expensive later to fix than now. I learned that lesson awhile ago. Newer Truck engines are complex machines that now require expensively trained and equipped people to repair. Sure you can fiddle around changing filters and replacing lines and some other stuff but for most drivers due to the cost of downtime taking it to a shop that you can trust is a good thing.

    When your truck is giving you codes it is telling you that there is a problem and it needs to be looked at.

    The one thing I can tell you is that air pressure in your coolant tank is not a good thing. You might have your bottle leak or break(always at the the worst time of course)and add another 1000 or so to your repair bill.
    Take care and good luck. Hope you can let us know what the issue was and what resolved it.
     
  8. Kris J

    Kris J Light Load Member

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    When the engine become hotter from cold, the water expand and it will be pressure in the system because it is a closed system.
     
  9. Rob100100

    Rob100100 Light Load Member

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    no not really lol. Reread his comments please
     
  10. KB3MMX

    KB3MMX Road Train Member

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    Thermostat is bad.

    Even with a fan stuck on it will warm up quickly with properly working thermostats.

    Bubbles is another issue if they don't stop. Can be EGR cooler, Head Gasket, Injector Cups, etc etc .... But definitely NOT the turbo


    .
     
  11. Kris J

    Kris J Light Load Member

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    No, don't understand. Of course it is a pressure in the cooling system when the engine is running because of the water expansion. The idea behind this is that the pressure will set the boiling point higher.
     
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