2003 Explorer Check Gauge light intermittent

[HOOS1]

The check gauge light comes on intermittently even after fill up. The needle drops below E
and the light comes on. Sometimes the needle returns to the correct level and the light goes out
or after cutting off and back on it will go out. I don't think it is the tank unit because it will read correctly
when I add gas. Any help would be appreciated. It does it any fuel levels.

 

[swshawaii]

Check gage (if equipped):
Illuminates when any of the following conditions has occurred:

• The engine coolant temperature is high.
• The engine oil pressure is low.
• The fuel gauge is at or near empty.

^ http://www.fordservicecontent.com/Ford_Content/catalog/owner_guides/03expog5e.pdf (Page 12)

Have you scanned for trouble codes?
MIL ON WITH PCM DTC P0463 AND/OR IC DTC B1201 - FUEL GAUGE DROPS TO EMPTY OR SLOW TO UPDATE AFTER REFUELING - REVISED

BBB Industries- Premium Alternators, Starters, Power Steering Products | TSB's & Wiring Diagrams