Fuel Gauge Sender: Testing and Inspection

INSPECT FUEL SENDER GAUGE OPERATION
a. Connect a series of three 1.5 V dry cell batteries.
b. Connect the positive (+) lead from the dry cell batteries to terminal 2 through a 3.4 W test bulb and the negative (-) lead to terminal 1.
c. Check that the voltage rises between terminals 1 and 2 as the float is moved from the top to bottom position.
If operation is not as specified, replace the sender gauge.







INSPECT FUEL SENDER GAUGE RESISTANCE
Measure the resistance between terminals 1 and 2 for each float position.
If resistance value is not as specified, replace the sender gauge.