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Several things can cause the fuel gauge to stop working.

1.The sending unit in the fuel tank may be malfunctioning or broken.

2.There may be a broken, disconnected, or grounded wire going to the fuel pump/sending unit.

3. There may be a disconnected wire at the gauge cluster, or the gauge cluster itself may be malfunctioning.

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11y ago
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Q: What could cause a gas gauge not to work on a 1990 Ford Bronco?
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