Rebuild

[Smiling lemon]

I have a cm2350 and i was wondering what happened to everybody before needing a rebuild.
I was talking to another driver and he said he his engine started leaking around the air pump then other coolant lines then it started pouring out coolent. My blow by and everything else looks good but i have a leak from the air pump and my apu lines have always leaked. I have recorded a couple minutes of driving on insite and have not seen anything that sets off a red flag beside the coolent leak and i have soot on my stacks so something is going on with emissions as well. I plan on popping off that little pipe behind the dpf to see if i can find the problem.