(2014) ISX15 coolant help!

[Rawze]

(10-16-2020 )Waterloo Wrote:  Rawze, on those injector cups, is it a common issue on the newer 2250+ to fail? Having the 871, it seems to be a rare occurrence. If it is an injector cup, will there be exhaust gas in the coolant system from a failed injector cup? I don't see how it could, but I am still learning about these high pressure fuel pump motors.

that is what was wrong with mine ... why i inframed it ... injector cup put pressure in coolant system and washed out a cylinder.