What are the symptoms before the fuel pump fails?

1 Answers
McJace
07/29/25 5:22am
The symptoms before the fuel pump fails include: 1. Weak acceleration with a jerking sensation when accelerating suddenly; 2. Difficulty starting the car, requiring prolonged key turning; 3. A buzzing abnormal noise during driving; 4. The engine warning light turns on; 5. The engine exhibits shaking. The main causes of fuel pump damage are poor fuel quality, delayed refueling, and long-term neglect of gasoline filter replacement. The function of the fuel pump is to draw gasoline from the fuel tank and deliver it through pipelines and the gasoline filter to the carburetor's float chamber, allowing the fuel tank to be positioned away from the engine at the rear of the car and below the engine. Based on the driving method, fuel pumps can be categorized into: mechanically driven diaphragm type and electrically driven type.
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