What are the symptoms of a faulty car oil pump?

[Laila]

The symptoms of a faulty car oil pump are as follows: 1. Weak acceleration, with jerking when accelerating suddenly. 2. Difficulty starting, requiring prolonged key turning. 3. A buzzing sound while driving. 4. The engine warning light illuminates. 5. The engine exhibits shaking. Relevant information is as follows: 1. The function of the oil pump is to raise the oil to a certain pressure and then forcibly deliver it to the moving surfaces of various engine components. 2. Oil pumps can be structurally categorized into gear-type and rotor-type, with gear-type oil pumps further divided into internal gear and external gear types, the latter commonly referred to as gear-type oil pumps. 3. During engine operation, the oil pump continuously works to ensure the oil circulates within the lubrication circuit, providing sufficient lubrication under all engine conditions.