What should the fuel gauge read when the tank is full?
If the tank is full, the meter should read around 10 ohms. If the tank is near empty, it should read around 150 ohms. Since your meter is pegging below empty, indicates to me there is probably an open in the circuit.
What should the fuel gauge peg past full?
Ground the black lead of the multimeter to ground and connect the red lead to the B/W wire. There should be 12V. If there is 12V the fuel gauge will peg to full. With the splice connection open, the gauge will peg past full. Grounding the B/W wire will peg it past empty.
How can I test the fuel gauge on my Green Tractor?
The fuel gauge can be tested by turning the ignition on. Check for voltage on the B/W wire going to the instrument cluster. Ground the black lead of the multimeter to ground and connect the red lead to the B/W wire. There should be 12V. If there is 12V the fuel gauge will peg to full.
What causes a fuel gauge to stop working?
Grounding the B/W wire will peg it past empty. If the gauge passes the test, it is working. When finished testing, be sure to connect the M/F splice on the B/W so it is now back to original. If there is 12V on the wire to the instrument cluster, but does not move by applying open or ground, the gauge is probably stuck.
If the tank is full, the meter should read around 10 ohms. If the tank is near empty, it should read around 150 ohms. Since your meter is pegging below empty, indicates to me there is probably an open in the circuit.
Ground the black lead of the multimeter to ground and connect the red lead to the B/W wire. There should be 12V. If there is 12V the fuel gauge will peg to full. With the splice connection open, the gauge will peg past full. Grounding the B/W wire will peg it past empty.
The fuel gauge can be tested by turning the ignition on. Check for voltage on the B/W wire going to the instrument cluster. Ground the black lead of the multimeter to ground and connect the red lead to the B/W wire. There should be 12V. If there is 12V the fuel gauge will peg to full.
Grounding the B/W wire will peg it past empty. If the gauge passes the test, it is working. When finished testing, be sure to connect the M/F splice on the B/W so it is now back to original. If there is 12V on the wire to the instrument cluster, but does not move by applying open or ground, the gauge is probably stuck.
