B4000 SE Cab Plus 2WD V6-4.0L OHV (1998)
Fuel Gauge: Testing and Inspection
With the sending unit float arm in the empty-stop (below E) position, the resistance should be 15 ohms. With the sending unit float arm in the full-stop
(above F) position, the resistance should be 160 ohms. The fuel gauge should read empty at 22.5 ohms and full at 145 ohms.