Posted 7/31/2023 20:40 (#10339264 - in reply to #10339233) Subject: RE: Help with diesel in coolant, Cummins ISM
SE USA
Possibly messed up on injector cups first go around. Did some or all get done then. We usually seen antifreeze leaking out thru EGR cooler back then. You could have contaminated coolant from first fix.