How to tell if fuel gauge is broken?

1. Fuel gauge behaves erratically. One of the first symptoms of a problem with the fuel gauge sender is a fuel gauge that behaves erratically. A faulty fuel gauge sender may cause the gauge to suddenly change positions, or give an inaccurate reading.

What causes a fuel gauge to read full?

Fuel gauge stuck on full Another, less common, symptom of an issue with the fuel gauge sender is a fuel gauge that is stuck on full. A faulty fuel gauge resistor can send a bad signal to the instrument cluster which can cause the gauge to permanently read full.

When do you need to replace the fuel gauge sender?

If your fuel gauge behaves erratically or is stuck on full or empty, you may need to replace the fuel gauge sender. 1. Fuel gauge behaves erratically 2. Fuel gauge stuck on empty 3. Fuel gauge stuck on full The fuel gauge sender is a component that is found in the gas tank of most road going vehicles.

What does the white stripe on the fuel gauge mean?

The wire from the sender to the gauge cluster (instrument cluster) is identified as a Yellow/White (YE/WH) (yellow with white stripe). It runs from the cluster to the tank sender (assuming you don’t have dual tanks). It does pass through a couple of additional harness connectors between the tank and the dash.

What does a zero ohm fuel gauge mean?

The reading should now be zero ohms (or close to it: Less than 1 ohm). This will prove that the wire is not open. These tests will determine whether the wiring is good, shorted, or open, and whether the sender is good, shorted, or open. If all tests come out good, then you most likely have a bad gauge.

Where is the power plug on the fuel gauge?

It feeds multiple items in the instrument cluster (Door ajar light, seat belt indicator, wait-to-start indicaor, etc.). So, if these are working, then the cluster should be supplying power to the gauge as well. It is supplied by fuse #19 in the fuse panel. The gauge cluster has 3 harness plugs.