I just had my truck in for the fifth time because they refuse to replace the injectors and keep doing little stuff. It has a brand new fuel filter, filter housing, lines, and sensors associated with it. It started great a couple weeks ago when I got it back, it was nice to have it working again. Now, same deal, crank and no start, no resistance on the primer button for fifteen or twenty pumps. Won't even start when I prime it now. Any ideas, everyone says it should be the injectors, but two different dealers won't replace them because the "god almighty GM tech line" doesnt tell them to.