ISX 15 Demandate vs fix.

[kozakvod]

Rocks & hard places are a hell of a place to be stuck between. Do I or don't I?

I think any of us that have EGR/DPF/DOC engines have been in the same spot, there are plenty of folks on this site that can help you.

Regarding that coolant leak...There isn't any coolant into your DOC, however that 4" pipe coming out of your DPF crossing over and into your DOC, the pipe where you DEF Doser Injector is located does have coolant and even without seeing it I'd bet it's one of those quick-connect fittings that plug into the DEF valve body. Those fittings are about $30 for both, replace them both. Clamp off both of those coolant lines, pull the fittings off and take them with you, otherwise the parts guy at the dealership could be one of those that doesn't have the foggiest idea what in God's name you're even talking about.

Assuming yours is easier to get to than mine are it shouldn't take you more than an hour or so to fix the coolant leak.

Good luck.