Use an ohmmeter to check the resistance of the fuel sender.
Insert one of the ohm tester leads into each of the fuel sender electrical connectors (Item 1) [Figure 50-70-2] in the end of the fuel sender.
With the fuel sender in the position shown [Figure 50-70-3], read the ohms in the empty position. Slide the float upwards and the ohm reading will decrease. See resistance chart below.
The resistance should read as follows:
FULL: 30 ohm
HALF: 150 ohm
EMPTY: 270 ohm
Inspect the O-ring (Item 1) [Figure 50-70-4] and replace as needed.
