1. Before check of the fuel level sensor define true level of fuel.
2. Remove a tank and get the pump with the sensor.
3. Measure resistance of the sensor at completely lowered float (a tank empty) and in the extreme top provision of a float (a full tank). Resistance should change from 110 (at empty) to 3 Ohm (at a full tank).
Replacement
PERFORMANCE ORDER
1. For replacement of the sensor disconnect sockets.