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450HP Cummins Issues?

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  • 450HP Cummins Issues?

    Little background here. We have 2 Spartan Chassis, 1 a 2017 and 1 a 2019 both with the 450HP Cummins. Earlier this year we started noticing a coolant smell after returning from runs and a loss of coolant. While having it serviced our mechanic pressured tested the coolant system and could see where coolant had been leaking around the EGR cooler. The truck was then sent to a Cummins dealer for warranty repair and new EGR cooler. Our 2019 Cummins is now doing the same thing and at the Cummins dealer getting the same replaced. We went through 1 1/2 gallon of coolant in a month and a half on this truck. Just the other night after returning from a call the 2017 has the coolant smell again. I've spoken to another department with the same motor and they are having the same issue with coolant loss.

    Is anyone else experiencing this coolant issue with their Cummins motor? We are going to get the service writer at the Cummins dealer to get Cummins involved because this doesn't seem right.

  • #2
    Honestly from my experience it isn't a Cummins issue. It's a Spartan issue and the choice of hose they use to get coolant to the heaters in the cab. Our two 2010s were notorious for this. Almost every Spartan I've been near in this area that is 10 years old or newer smells like coolant when you're close.

    Is the department you spoke to with the same motor running a Spartan? Our newest engine is NOT a Spartan and the only time we've ever smelled coolant is when there was a hose issue again for the heating system that was replaced under warranty.

    Our Spartan rigs still smell like coolant but never use coolant. Is yours consuming it that you can tell?
    "Share your knowledge - it's a way to achieve immortality." - Stolen from Chase Sargent's Buddy to Boss program

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