the diesel engine big or small will always have a noise until its warmed up. that is natural but if it does continue at some point after it is warmed up if u r able to give description of it maybe we can all try to help ya..
owner of a 2003 f-250 superduty, crew cab lariat.. of coarse has the 6.0 in it.. not to familiar with those engines so if any tips on them plz contact me.. have worked on many other diesels but not this one and have heard plenty of probs and so forth.. but i do like my truck and am gonna try to...