Fuel Gauge Sender: Testing and Inspection

1. 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 4 through a 3.4 W test bulb and the negative (-) lead to terminal 5.
c. Connect the positive (+) lead from the voltmeter to terminal 4 and the negative (-) lead to terminal 5.
d. Check that the voltage rises as the float is moved from the full to empty position.

Terminal Identification:

Reference:

2. INSPECT FUEL SENDER GAUGE RESISTANCE
Measure the resistance between terminals 4 and 5.
If resistance value is not as specified, replace the sender gauge.