I own a 2005 V6 mustang. I have kept it stock due to lack of funding. Since I bought the car three years ago, there has been an issue with refilling the fuel tank: when I go to refill, the sensor on the pump will shut the pump off early (after a gallon or two... never consistent when it shuts off, sometimes its after only about .2 gallon) even though I know I have an empty tank. This wasn't really a big deal because I always knew roughly how much gas I needed. All of the forums simply stated it was an oddball, un-fixable and overall simply inconvenient error. However, about 8 months ago, my fuel gauge suddenly registered at below empty. At first I thought someone had siphoned my gas but I have a locking fuel door and it had not been tampered with. After a few times of turning the car and and off, it began to register again. Over time the fuel gauge would become more and more erratic, most of the time registering at empty or below the E line. I finally saved up enough cash to take the car in to a mechanic. He thought it was the sending units, so he replaced those. Still no change. He's contacted Ford and a few other resources and is unable to find the error. I have checked all the forums and so far, I'm unable to find any repair options aside from "replace the sending units." I'm uncomfortable taking it into Ford and have them charge me up the wahzoo and in the end say, "sorry, we don't know what wrong." I've been working off of the trip odometer, but it still concerns me as I am constantly on the move and need a more reliable fuel gauge so that I don't end up stranded somewhere. I also don't want the other gauges to go out on me and end up SOL. If anyone knows of any solutions or other resources, please let me know asap. Thanks in advance!