What are the effects of not replacing the fuel filter?

[MadisonFitz]

The effects of not replacing the fuel filter: 1. The obvious symptoms are reduced vehicle power, unstable idling, and difficulty starting; 2. Fuel line blockage, leading to insufficient fuel supply; 3. If not replaced for a long time, the filtration efficiency will significantly decrease, allowing impurities to enter the engine and reducing its lifespan; 4. The fuel filter is connected to the fuel pump. If there are too many impurities in the fuel, it can clog the fuel injectors, resulting in poor fuel supply. Gasoline is not pure and contains many impurities. The function of the fuel filter is to filter out smaller impurities and particles in the fuel. The fuel filter has a limited lifespan and should generally be replaced every 20,000 kilometers. Once it reaches the end of its lifespan, its filtration efficiency will greatly diminish, subsequently affecting fuel flow and pressure, ultimately leading to symptoms like reduced vehicle power.