What are the symptoms of a faulty fuel pump in the Buick Excelle?

[Lawson]

Specific symptoms are described as follows: 1. Weak acceleration: The vehicle may experience weak acceleration and jerking when accelerating suddenly. 2. Hard starting: Difficulty in starting the engine, requiring prolonged key turning. 3. Abnormal noises: The vehicle may produce abnormal noises, such as a buzzing sound while driving. 4. Engine issues: The engine warning light may illuminate; the engine may shake. Additional information: Causes of fuel pump damage: 1. Insufficient fuel in the tank: The fuel pump relies on the fuel passing through it for cooling. Without adequate cooling and lubrication, the fuel pump can be damaged. 2. Long-term neglect of gasoline filter cleaning or replacement: Severe blockage in the fuel supply system can strain the fuel pump, leading to damage due to prolonged high-load operation. 3. Poor fuel quality: Impurities in the gasoline can enter the internal bearings of the fuel pump, accelerating bearing wear and causing fuel pump failure.