I noticed today while inspecting machine that the fuel line is being rubbed by the zip tie retainers. Look for gray fuel line that runs along the motor mount bar up the drivers side under bed to throttle body. There are three points that are secured by a zip tie with a zip tie retainer. Two had tape run around the fuel line to protect it from rubbing the line, one did not. One of the two taped spots on line were at the point the zip tie contacts the line, one was not. What I found when I felt the line was that the retainers that hold the fuel line with zip tie are rubbing a hole in the line without tape as a buffer. It did not rub a hole but is well on its way to rubbing a hole in line. Check you fuel line to make sure it is not in direct contact with these retainers.