I own a 00 windstar lx, very happy with unit. Recently, while driving in a highway, after 400 miles, fuel indicator went to "empty" and advertising lamp went on, 10 minutes before was reading 3/4 tank (never let fuel level run less than 1/4), no noticeable change on driving (no fuel cut off), after 10 minutes fuel measuring restarted alone (before I found a gas station) and arrived home with no problem. Next day van was scanned, advertising codes of fuel pump unit came, but pump was OK, fuel measuring went on and off oftenly. Fuel tank was washed and we cannot find any reason for it, now fuel leveling is continuously off. Checked potentiometer and reads OK. Can anyone help me?