How often should the high-pressure fuel pump be replaced?

[Leonard]

5 years. The service life of a gasoline pump is 5 years. It mainly depends on mileage and fuel quality. Replacement is unnecessary if it doesn't affect engine performance. Below is extended information on the causes of automotive fuel pump damage: Not refueling promptly: Gasoline serves to cool and lubricate the fuel pump. Failing to refuel promptly after the fuel warning light comes on can reduce the cooling and lubrication effects, leading to fuel pump damage. Insufficient fuel pressure: When the fuel level warning light on the dashboard illuminates, the fuel pump motor may not receive adequate cooling and lubrication due to the low fuel level, causing the motor to overheat or even stop. Long-term neglect of gasoline filter replacement: Severe clogging in the fuel supply system of the gasoline filter makes pumping difficult, and prolonged high-load operation can also cause fuel pump damage. Poor fuel quality: When fuel quality is poor, impurities or foreign objects may be present in the fuel tank. Large particles are filtered out by the screen, while small particles are sucked into the fuel pump motor, accelerating wear and tear.