I have a 1995 Astro with >150,000 miles on it. It has developed a leak in the fuel line just after the fuel tank (fuel pump). The line is over the drive-shaft and muffler. Is this a common problem? Should I even attempt to fix it myself (I am concerned with being able to get to the line, getting the line disconnected - rust, and being able to find the replacement)? Should I take it to a shop - I have a good shop, but don't really want to drop alot of money on the repair. The vehicle runs great, but living in MI the body isn't long for this world.