What Causes Inaccurate Car Fuel Gauge Readings?

1 Answers
MaximusLynn
07/30/25 4:00am
Here are the symptoms and causes of inaccurate car fuel gauge readings: 1. The fuel gauge pointer fluctuates irregularly. This is related to the design of the fuel pump that reflects fuel levels, which cannot uniformly indicate gasoline consumption. Such uniform changes are difficult to achieve and cannot be altered through repairs or part replacements. 2. The fuel gauge suddenly drops to zero. This occurs when the fuel level sensor becomes contaminated and is not cleaned promptly. It's important to note that gasoline contains many impurities, and the fuel level sensor, constantly submerged in it, can become polluted over time, directly affecting the accuracy of the readings. 3. The fuel gauge scale rises. This happens when the linkage between the fuel level sensor and the float gets stuck, preventing the float from moving up and down normally. As a result, the fuel level sensor does not change, causing the fuel gauge pointer to remain fixed at a certain position.
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