I have a 2008 ford edge that I just purchased 10 months ago. I had it to dealer for a recalled fuel tank replacement. A short time ago I had it for a drive which I don;t drive much because it is the wife car. I noticed that soft throttles it surges but at aggressive throttles it doesn't. The wife says it has been doing this since fuel tank replacement which was many months ago so going back to dealer is probably a waste of time. She also tells me that at 160 to 180 kms to empty the low fuel light comes on and goes to 0kms to empty on the display. has anyone had this problem any any idea where to start looking for problem.