In some vehicles, there is also a fuse box under the hood.Ĭhecking the fuse is simple to do and only requires a few minutes. You can find the fuse in the box located under the steering column or on the driver’s side of your vehicle. Bad FuseĪlong with the electrical connections, the fuel gauge also utilizes a fuse. These defects are most commonly seen with the connection to the fuel pump module because of the consistent exposure to the elements. However, any loose connection or corrosion can lead to issues. In some cases, the issue is because of an interrupted ground connection. If there is a fault in the system, there might not be enough voltage for the gauge to read correctly. The fuel gauge runs off of electricity, requiring functioning wiring and circuitry. RELATED: Symptoms of a bad fuel sending unit 2. In this case, the gas gauge won’t change regardless of how much fuel is in the tank. In turn, the fuel gauge might think the voltage feedback means that the tank is either empty or full, depending on how the car is set up. If the contacts wear out, the circuits can remain open. However, this constant use means that it is prone to wear. As your vehicle runs, the sending unit is constantly monitoring the level of fuel in the tank. The sending unit is where the whole process begins.
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