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Fuel gauge fluctuations can be caused by several factors, including a faulty fuel sender unit, which may not accurately measure the fuel level due to wear or damage. Additionally, irregularities in the vehicle's electrical system, such as a weak battery or poor ground connections, can affect the gauge's readings. Changes in fuel sloshing around in the tank, especially during acceleration or braking, can also cause temporary fluctuations in the gauge. Lastly, issues with the gauge itself, such as a malfunctioning instrument cluster, may contribute to inconsistent readings.

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1w ago

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