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What is the situation when the fuel gauge is inaccurate after replacing the fuel pump assembly?

1 Answers

AriannaMarie

07/25/25 9:35am

There are three situations, namely the fuel gauge pointer sometimes fast and sometimes slow, the fuel gauge suddenly drops to zero, and the fuel gauge scale rises. Fuel gauge pointer sometimes fast and sometimes slow: This situation is very common, usually manifested as the fuel gauge pointer drops slowly in the first half of the fuel gauge, and after passing the middle scale, the fuel gauge pointer will drop quickly. However, the fuel gauge pointer sometimes fast and sometimes slow cannot be said to be a fault, because it is related to the design of the fuel pump used to reflect the fuel quantity, it cannot uniformly reflect the gasoline consumption, because this uniform change is difficult to achieve, and it is also impossible to change through maintenance or replacement of parts. Fuel gauge suddenly drops to zero: The indication of the fuel gauge depends on the fuel level sensor. When this situation occurs, it means that the fuel level sensor of the vehicle has a problem. It is very likely that the fuel level sensor is contaminated and not cleaned in time. It should be known that gasoline contains many impurities, and the fuel level sensor has been soaked in it for a long time, and it will be polluted over time, directly affecting the accuracy of the indication. Fuel gauge scale rises: This situation is because the connecting rod between the fuel level sensor and the float is stuck, and the float cannot move up and down normally, causing the fuel level sensor not to change, so the fuel gauge pointer is fixed at a certain position.

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