Maxxforce 13 Oil in coolant, no oil pressure

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Auralogi, Jul 9, 2020.

  1. Rooster57

    Rooster57 Bobtail Member

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    Dec 9, 2020
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    Would this cause pressuring up and blowing out all coolant from reservoir ?
    Same engine 2013 Maxxforce 13 . This happened to me last week.
    Haven’t pulled intake hose yet as the previous suggestion. No leaks or smoke
     
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  3. Heavyd

    Heavyd Road Train Member

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    Air compressor or cracked cylinder head will cause this.
     
  4. petefan4000

    petefan4000 Light Load Member

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    Swap it for a C13 or a DD13.
     
  5. gege71055

    gege71055 Bobtail Member

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    Jul 12, 2017
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    I have what looks to be coolant in my oil and it’s also pushing coolant out the reservoir. Would this apply to my issue also. Same year and engine.
     
  6. Heavyd

    Heavyd Road Train Member

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    Failed oil cooler would be more likely.
     
    Oxbow and petefan4000 Thank this.
  7. petefan4000

    petefan4000 Light Load Member

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    Probably the oil cooler.
     
  8. semi experience

    semi experience Bobtail Member

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    Nov 14, 2021
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    2013 mf13 engine ,I replaced bad head and I now get about 1/2 gallon oil a week in water reservoir after 2500 miles. Could this head be defective with cracked or bad machined oil port ? no oil in reservoir prior to changing old cracked head. Didn't disturb oil cooler housing when replacing head so i feel like it isn't the problem. Any suggestions on where the oil is entering cooling system?
     
    Last edited: Nov 14, 2021
  9. Heavyd

    Heavyd Road Train Member

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  10. semi experience

    semi experience Bobtail Member

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    Nov 14, 2021
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    I originally thought so too. Got one laying in floor to swap it and see if that solves the problem. Thanks for the help, will keep you posted if not solved with oil cooler replacement
     
  11. Barrolloff

    Barrolloff Bobtail Member

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    Dec 6, 2023
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    I have a 2014 maxxforce 13 that puts soot in the coolant reservoir only under boost
     
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