···
Log in / Register

Why does the fuel pump fuse keep blowing?

5 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.

Was this review help?
5
3
Share
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.

Was this review help?
8
1
Share
Expand All
OAliyah
10/04/25 2:54am

I just helped my neighbor fix a similar issue last week—the fuel pump fuse kept blowing, and it was really annoying not knowing why! Check if the wiring is damp or shorted due to aging; an overloaded fuel pump could also be the culprit. I inspected the fuse box for him—looked for the corresponding markings—and confirmed the specs matched. Then, I unplugged the fuel pump connector to check for corrosion. Honestly, such problems often stem from modification errors or loose relay connections. Before replacing the fuse, a thorough inspection is a must, or you might end up stranded on the road! Regularly cleaning engine bay dust also helps prevent short circuits.

Was this review help?
9
4
Share
Expand All
SanEdward
11/17/25 4:29am

Oh man, I've been through this frustrating car issue too. When the fuel pump fuse keeps blowing repeatedly, it's most likely due to an internal short circuit or poor contact. You should check if there's any wire insulation damage or water leakage around the fuel pump and its wiring. Voltage spikes or undersized fuses can also cause this. Try replacing the fuse first to see if it blows again - if it burns out immediately, that indicates a serious problem. Don't hesitate to take it to a professional repair shop, don't make the same mistake I did by waiting until the car broke down completely!

Was this review help?
3
5
Share
Expand All
KadenFitz
01/07/26 6:06am

I've handled many such cases where the fuel pump fuse keeps blowing. There are multiple reasons: first, internal coil short-circuit in the fuel pump causing excessive current; second, aging wiring with leakage or oxidized contacts leading to poor connection; third, abnormal alternator output causing voltage fluctuations that trigger the fuse. It's also necessary to check whether the fuse rating matches the fuel pump's power. I recommend step-by-step inspection of wire insulation integrity and fuel pump resistance measurement. If fuses blow frequently, a comprehensive circuit inspection is needed - prolonged neglect may damage the fuel system!

Was this review help?
13
2
Share
Expand All
More Forum Discussions

Can You Start the Engine If Water Enters the Exhaust Pipe?

If only a small amount of water enters the exhaust pipe, you can still start the engine; however, if a large amount of water enters the exhaust pipe, it is advisable not to start the engine. A significant amount of water in the exhaust pipe can cause the engine to stall. If you attempt to start the engine under such conditions, it may lead to deformation of the engine connecting rod or even cylinder puncture. The exhaust pipe is a device designed to reduce vibration and noise, facilitate installation, and extend the lifespan of the exhaust muffler system. It is installed between the engine exhaust manifold and the muffler, providing a flexible connection for the entire exhaust system. Exhaust pipes are primarily used in light vehicles, compact cars, buses, motorcycles, and similar vehicles.
7
2
Share

Where is the thermostat located on the Chery Tiggo 3?

The thermostat of the Chery Tiggo 3 is located at the upper water outlet of the engine. The car thermostat is a valve that controls the flow path of the engine coolant. It automatically adjusts the amount of water entering the radiator based on the coolant temperature to ensure the engine operates within an appropriate temperature range, which can help save energy. The Chery Tiggo 3 is a compact SUV launched by Chery Automobile, with dimensions of 4420mm in length, 1760mm in width, and 1670mm in height, and a wheelbase of 2510mm. It is equipped with a 1.5L naturally aspirated engine with a maximum power of 85kw, paired with a 5-speed manual transmission.
13
2
Share

How to Install the Rear Camera of a Dash Cam?

Installation method for the rear camera of a dash cam: 1. Plug in the rear camera connector and the power supply on the cigarette lighter, then check if both front and rear cameras are functioning properly; 2. After confirming everything is correct, start routing the wires; 3. Tuck the wires into the plastic panel above and connect them to the fuse box; 4. Use a trim tool to guide the rear camera wire to the rear windshield and remove the panel above the rear glass; 5. Pull the wire through the hole and install the camera in the position of the removed panel. A dash cam is a device that records images, sounds, and related information during vehicle travel. After installing a dash cam, it can record the entire driving process in video and audio, providing evidence for traffic accidents.
12
5
Share

What to Do When a Sunroof Leaks into the Car?

Here are the causes and solutions for a car sunroof leaking: 1. The sunroof drain is clogged with debris: This prevents water from draining, causing it to seep into the car. Clear the sunroof's drainage channel or use a towel to clean the drain outlet, ensuring water drains properly to the ground. 2. Damaged sunroof seal: This causes poor edge sealing, allowing water to enter the car. Replace the sunroof seal with a new one. 3. Gaps in the sunroof frame: Apply sealant to the sunroof frame. If the vehicle is under warranty, the most straightforward solution is to replace the sunroof frame, which typically takes a professional technician about three days.
16
3
Share

How to Check the Car Model?

Methods to check the car model: You can look at the vehicle identification plate, which details the manufacturing date, engine displacement, power (kW), and other parameters. The location of the vehicle identification plate varies by car but is generally found on the lower part of the passenger side door; opening the door will reveal it. The car model is a unique identifier assigned to a class of vehicles, consisting of pinyin letters and Arabic numerals. According to national standards, the model of a domestically produced car should indicate the manufacturer, type, and key characteristic parameters. The vehicle identification plate is a tag that displays the basic features of the vehicle, including the manufacturer, model, engine power, total weight, load capacity or passenger capacity, manufacturing number, production date, and manufacturer's name.
3
3
Share

What brand are the original tires on the Changan CS55?

The original tires on the Changan CS55 are Continental, with specifications of 225/55R18. Continental is a European automotive parts supplier known for its all-weather safety and reliability, low noise, and strong self-cleaning capabilities. It has extremely high instantaneous overload capacity, sensitive handling response and cornering stability, excellent braking performance on both dry and wet surfaces, as well as higher drainage protection capabilities. The Changan CS55 is a compact SUV launched by Changan Automobile, with dimensions of 4500mm in length, 1855mm in width, and 1690mm in height, a wheelbase of 2650mm, and is equipped with a 1.5T turbocharged engine with a maximum power of 115kw, paired with a 6-speed manual or 6-speed automatic transmission.
13
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.