I thought I was aware of all the common lingo used here but I have to admit, when it comes to a truck puking i have no idea what you all mean. My '04 has a bad EGR valve I believe(been told). Most commonly at stops the truck sputters and spits small clouds of smoke before returning to normal operation. What are the symptoms of "puking"? what are the causes? I read on another thread that streached bolts is one way. Is this a possibility if using a mild tune or even in stock mode or is this a high pressure problem. Thanks and sorry for the dumb question!