I just bought a 1995 GMC 1500 6.5. I used to work on my gasoline cars and even took some classes in school, I figured "how hard can working on a diesel be?" I mean it's got less parts and all. I tried to change the fuel filter and screwed the pooch on that one. I ended up dumping a measuring cup diesel directly into the filter housing because I couldn't get it primed. So the heck with it, get a professional. Can any of you guys recommend a shop?