Frontier SE Crew Cab 4WD V6-3.3L (VG33E) (2000)
5. Install the Connector Cover onto the Fuel Sending Unit Connectors until it is fully seated. See Figure 27.
6. Use the Nylon Brush #J-47239 to loosen/remove dirt and debris on the vertical surface of the Fuel Sending Unit Connectors (see Figure 28).
NOTE:
If needed, you can bend the Brush to better reach the vertical surfaces.
7. Remove the Connector Cover once you're done with the above step.