Paccar mx13 epa13 coolant in fuel!!!

[Nerv]

(11-12-2023 )Pd6cas2 Wrote:  My Friend had the exact same issue. Artic Fox heater were leaking inside Fuel tank! 2 yrs ago when this happened’ they were back ordered 6 months, he just eliminated the heaters.

Yeah i was hoping that was the issue, I dont have heaters and Im not sure if the water separator has heating either. I ordered a set of new sleeves (non-OEM), going to see if the mechanic will buy the tooling for the job, if not ill just order it and do it myself. Seems like a pretty straightforward job. Can this issue arise from the head being cracked? Or would I have other symptoms from a cracked head?