i recently got this truck was not smoking and out of no were it started to smoke white and blue just geting worse and worse.. i replaced all the return lines new water/fuel seperator it helped a little on the smoke but still there... HORRIBLE smoke on startup settles down once cold start turns off but constant smoke very little unless you go down a hill and get on the gas a crazy amount again.. the smoke burns your eyes defently diesel.. horrible power cannot go up a hill past 40 mph with peddle slammed... rmps increase when slam on gas but NO change in speed at all stay at same speed..is this the injector pump advance worn? injectors? valves? im completly lost and dont want to spend money that i do not need to spend.. any help is amazing.. serveral people have said pump and injectors but none know alot about diesels just very little