What are the symptoms of a bad car fuel pump?
1 Answers
There are different symptoms depending on the severity of the fuel pump failure. The following are symptoms of fuel pump failure at different levels: 1. Complete failure: If the fuel pump is completely broken, it cannot pump any fuel at all, causing the fuel supply system to collapse and the vehicle to fail to start. 2. Partial failure: Damage to the fuel pump check valve can lead to residual fuel pressure, preventing the fuel pressure from reaching the specified value, greatly reducing the atomization effect, making it difficult to start the engine, and requiring multiple ignition attempts over a long period. Mechanical faults such as rotor jamming: The working current of the fuel pump increases, causing damage to the relay or fuse. 3. Engine issues: The engine warning light comes on, and the engine experiences abnormal shaking.