Unfortunately for me, I can't find a competent repair facility I trust in replacing the fuel line. The 1st mechanic doesn't work on diesels, and doesn't want to. At least I can appreciate his honesty, and I equate that with integrity. As for the dealer, I know they've worked on diesels before. I'm not saying they're good, but I believe they have the resorces to fix the truck right, even if they give the job to "broom boy". If he screws it up, they'll have a competent tech fix the fix. The bottom line is in my situation I have no chioce but letting the dealer fix the truck, and I trust him to fix it correctly. There are other issues I don't trust him on, one of which led me to posting this question in the first place. For example, about 2 yrs. ago I brought my truck to them complaining about loose steering. They told me most of the front end needed replacing at a cost of about $1400. 00. I wanted a few second opinions and got them. The ONLY problem was a worn tracking bar!! Total cost to repair- $200. 00. Now you know why I am reluctant to trust this dealer and why I posted this question. From the info I gathered from the 1st mech. and the members who responded, I now believe there are 5 fuel lines needing replacment, a job I can't do myself. Unfortunately for me I am at the mercy of the dealer. The bright side is this doesn't happen too often.