Why does the fuel pump fuse keep blowing?

2 Answers
McWeston
07/29/25 6:21am
There might be an issue with the fuel pump, and it is recommended to replace it promptly. Below is some extended information about the fuel pump: 1. The function of the fuel pump: It draws gasoline from the fuel tank and delivers it through the pipeline and fuel filter to the float chamber of the carburetor. It is precisely because of the fuel pump that the fuel tank can be placed at the rear of the vehicle, far from the engine, and lower than the engine. 2. Relay (English name: relay): It is an electrical control device that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change in the input quantity (excitation quantity) reaches the specified requirements. It has an interactive relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit). It is usually used in automatic control circuits and is essentially an 'automatic switch' that uses a small current to control the operation of a large current. Therefore, it plays roles such as automatic regulation, safety protection, and circuit conversion in the circuit.
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LiamAnn
08/12/25 9:42pm
Hey, I had an old buddy who ran into this same issue - the fuel pump fuse keeps blowing, and that's no small matter! It's most likely either a wiring problem or the fuel pump is about to fail. When wires age and short circuit, the current increases and blows the fuse; sometimes the fuel pump itself can cause trouble with internal short circuits or abnormal resistance. You should immediately check for worn wiring near the fuel tank and see if the fuel pump connectors are corroded. I recommend not just replacing the fuse - get a mechanic to test the voltage with a multimeter, otherwise you'll waste money and might even face danger. Older cars are especially prone to this, particularly when the wiring gets damp on rainy days, which makes it even more troublesome. Keeping an eye on these vulnerable spots during regular maintenance can save you a lot of headaches.
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