hi good day i am new to this site, hoping that someone can help me with a serious issue i am having. really weird, this problem happened 4 times, while driving the engine started to knock losing power and a lot of blackish smoke from exhaust. eventually engine cut off and couldn't restart, needed to be jumped started. this occurred 3 times, diesel was seen leaking out of the intercooler connector hose to throttle body. this occurred 3 times, i subsequently adjusted the fuel pump, rotating the mark line on the pump slightly below the recommended mark. the engine worked for a about 6 months without this problem except i found it was knocking a bit to much. the problem explained above occurred again last week. don't know why, anyone ever experienced this before or can give some incite. thanks in advance