Freightliner Cascadia 2013 DD 15 Diesel in coolant reservoir!

Discussion in 'Freightliner Forum' started by Rollerr, Sep 9, 2018.

  1. Rollerr

    Rollerr Bobtail Member

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    Freightliner Cascadia 2013 DD 15.

    I noticed there is diesel on top of coolant reservoir. But the truck is running in normal temperature.

    Any ideas are appreciated.

    Thanks.
     
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  3. Oldironfan

    Oldironfan Road Train Member

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    You have a injector cup leak I would think.
     
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  4. S M D

    S M D Road Train Member

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    Yep injector cups

    Edit: itll run normal but fix it as soon as you can.
    One of my trucks as of two days ago is mixing diesel into the oil.
    Prior to that my other truck had the same issue as yours
     
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  5. Oldironfan

    Oldironfan Road Train Member

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    Diesel in oil is usually a head issue, or liner issue.
    Or injector over fuel, fuel dilution issue.
     
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  6. Oldironfan

    Oldironfan Road Train Member

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    Don't quote me I'm just a dumb driver.
     
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  7. pmdriver

    pmdriver Road Train Member

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    We still appreciate you guys its a lifestyle that gets in your blood
     
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  8. AModelCat

    AModelCat Road Train Member

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    Might wanna get that issue rectified quickly. Petroleum products will deteriorate heater and rad hoses.
     
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  9. Rideandrepair

    Rideandrepair Road Train Member

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    Hopefully you can change them W/O pulling head
     
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  10. Antinomian

    Antinomian Road Train Member

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    Bad injector cup.

    You need to park it ASAP. Fuel in the coolant can cause hoses to blow when the fuel gets hot and starts to expand. Also, you may have coolant in your fuel tank. That too is common with an injector cup leak.
     
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