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What is the reason for the fuel gauge showing empty after refueling?

2 Answers

DiBrianna

08/31/25 2:57am

The reason why the fuel gauge shows empty after refueling may be due to a stuck fuel float. You can try shaking the car body. If the problem persists, further troubleshooting at a 4S shop is required. Below are some solutions related to the fuel gauge showing empty after refueling: Inspect the fuel pump by disassembling it: It might be caused by a stuck or aged and damaged fuel float that has taken in fuel, preventing it from floating on the gasoline. Instead, it may be suspended in the gasoline or sink to the bottom, leading to inaccurate measurements or no response. The solution is to disassemble the fuel pump for inspection. Tampering with gear sizes: Tampering with gear sizes. Modifications can be made to the fuel nozzle or the refueling meter. If the secondary gear is smaller, the amount per rotation will be less, resulting in a smaller actual fuel quantity. This happens because the transmission gear of the refueling meter displays the refueling quantity on the screen for each rotation. False reporting on the display: False reporting on the display. The screen is controlled by a program, showing sufficient numbers when the actual fuel level is not enough, or using a specialized remote control to manipulate the refueling machine's display.

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DiLeila

09/12/25 6:26am

I just refueled but the fuel gauge still shows empty, which has happened a few times in my decades of driving. Common causes include a stuck fuel float or a faulty fuel level sensor in the tank. The float, which should float on the fuel surface and send signals to the gauge, might be jammed by debris or mechanical wear, preventing it from moving. Driving a few kilometers and gently shaking the car might reset it. If that doesn’t work, it could be due to a short circuit, broken wiring, or a blown fuse, which can also cause this issue. For safety, don’t rely solely on the fuel gauge—track your fuel consumption and mileage manually, especially on long trips. Immediately visit a reliable repair shop to avoid the danger of breaking down in remote areas.

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