Fuel Tank Sending Unit

Remove fuel pump assembly. Using ohmmeter, measure resistance between fuel pump connector pins No. 3 and 4. See Fig 1 or Fig 2 . Adjust fuel tank sending unit float to 3 positions. See FUEL TANK SENDING UNIT RESISTANCE  table. If resistance is incorrect, replace fuel tank sending unit.

Fig 1: Identifying Fuel Pump Connector C343 Terminals (1999 Models)

Courtesy of FORD MOTOR CO.

Fig 2: Identifying Fuel Pump Connector C343 Terminals (2000-01 Models)

Courtesy of FORD MOTOR CO.