B4000 SE Cab Plus 4 4WD V6-4.0L OHV (2000)
Fuel Gauge Sender: Testing and Inspection
Fuel Tank Sending Unit Test
With the ohmmeter positive lead on the signal wire lead and the negative lead on ground, check the resistance values of the fuel sending unit at various
positions of the float arm. An open circuit will indicate infinity on the ohmmeter and a short will indicate zero ohms.