What Causes the Fuel Gauge to Not Display Fuel Level?
2 Answers
The fuel gauge not displaying fuel level may be caused by a malfunctioning fuel float (fuel level display sensor). Detailed cause analysis and solutions are as follows. Cause Analysis: Inside the car's fuel tank, there is a float ball connected to a metal rod, operating on the same basic principle as the float ball in a household toilet water tank. When the fuel level drops, the position of the float ball also decreases, which in turn moves a linkage to open the water inlet and allow water to flow in. As the water level rises, the float ball position also rises, and once it reaches a certain point, the linkage closes the water inlet. If the fuel float malfunctions, it will not display the fuel level. Solution: Lift the rear seat and cover plate; remove 6 screws, three fuel pipes, and the electrical connector; take out the fuel float and complete the soldering; reinstall everything.
I've had this experience before. It's really frustrating when the fuel gauge suddenly stops working. Usually, it's because the float sensor in the fuel tank is stuck or worn out, causing inaccurate fuel level readings when moving up and down. It could also be a blown fuse—first, check the relevant section in your car's fuse box to see if it's blackened. This is relatively simple and something you can try yourself. If the circuit connection is loose or the wiring is old and short-circuited, it can also cause signal interruption, especially in older cars. Don't overlook issues with the dashboard itself, such as a faulty display. If not addressed promptly, driving by estimating fuel levels can easily lead to breaking down halfway, especially on long trips, which is even more dangerous. I recommend first checking the fuse yourself. If that doesn't help, take it to a reliable repair shop for a thorough inspection to avoid further delays.
