How to replace the fuel pump when it is broken? Under what circumstances will the fuel pump be damaged?

The gasoline pump is an important component that can supply gasoline to the engine for combustion, convert it into kinetic energy, and enable the car to start on the road. When the vehicle fails to start and the gasoline pump does not work, it may be that there are too many impurities in the fuel and too much water at the bottom of the fuel tank, causing the gasoline pump to be abnormally damaged. So how to replace a broken gasoline pump?

How to replace a broken fuel pump

The parts of a vehicle have a certain service life. For example, gasoline is usually added at large-scale PetroChina or Sinopec, so the gasoline pump is relatively durable. When the vehicle fails to start and the gasoline pump does not work, it may be that there are too many impurities in the fuel and too much water at the bottom of the fuel tank, causing the gasoline pump to be abnormally damaged.

When replacing the fuel pump, first check whether there are too many impurities in the remaining fuel in the fuel tank, and whether there is too much water at the bottom of the fuel tank. If the fuel tank is relatively dirty, in order to avoid damaging the new fuel pump, you need to pump out the remaining fuel and clean the fuel tank before installing the new fuel pump.

Under what circumstances will the fuel pump be damaged?

1. Wear and aging

This situation not only occurs on gasoline pumps. Any equipment will produce wear during use. When the degree of wear exceeds the limit that the equipment can withstand, it will cause the equipment's working efficiency to decrease until it is completely damaged.

2. There are many impurities in the fuel

When it comes to fuel quality, I feel that many people have a lot to say. Excessive impurities in the fuel will not only accelerate the wear of the fuel pump, but also damage many parts of the vehicle such as the spark plug and combustion chamber. It will block the fuel pump pipeline and shorten the service life of the fuel pump.

3. Insufficient fuel in the fuel tank

The fuel pump needs to work frequently every day to ensure the fuel supply to the engine. During the work process, the fuel pump will generate wear and heat, which need to be alleviated by the lubrication and heat dissipation functions provided by the fuel. When the fuel tank is insufficient, the fuel pump will experience empty suction, lose lubrication and heat dissipation, and accelerate the wear of components such as the piston and sealing ring in the fuel pump.

4. Gasoline filter is clogged

A clogged gasoline filter will cause insufficient fuel supply to the engine. At this time, the vehicle's ECU will increase the fuel supply to meet the engine's fuel supply requirements. The result is an indirect increase in the fuel pump's working load and a shortened fuel pump's service life.

Will too little gasoline damage the gasoline pump?

Too little gasoline in the tank will not cause damage to the fuel pump.

The gasoline pump in the fuel tank needs to be cooled by gasoline, but it is not cooled by soaking in gasoline in the fuel tank.

Our fuel pump is installed inside the fuel tank. When there is less gasoline, it is indeed impossible to completely cover our fuel pump. However, it does not mean that if the gasoline does not cover the fuel pump, the temperature of the fuel pump will rise, causing damage to the fuel pump.

The most important component of the gasoline pump is the fuel pump motor. The fuel pump motor transports gasoline to the gasoline supply system through rotation. As long as the engine is running, our gasoline will continuously enter our engine through the gasoline pump for combustion.