What causes severe jerking and shaking during acceleration of the BYD Song?
2 Answers
The reasons for severe jerking and shaking during acceleration of the BYD Song are as follows: Severe engine carbon deposits: The most common cause of car shaking is a dirty throttle body or excessive carbon deposits on the fuel injectors. When there is too much carbon buildup inside the engine, the gasoline sprayed by the cold start injector is largely absorbed by the carbon deposits, resulting in an overly lean air-fuel mixture during cold starts and making it difficult to start. Ignition system issues: Check the working condition of the spark plugs, high-voltage wires, and ignition coils. Poor performance of the ignition system or inadequate spark plug firing can also lead to such symptoms. Unstable fuel pressure: If you have already cleaned the engine carbon deposits, throttle body, replaced the oil pads and spark plugs, but still notice shaking at idle, it is recommended to visit a 4S shop to check the fuel supply pressure and the intake pressure sensor. Abnormal fuel pump supply pressure or incorrect readings and poor performance of the intake pressure sensor can cause the car to shake.
I've been driving the BYD Song for a while, and the acceleration hesitation and shaking are quite a headache. Common causes could be wear and slippage in the dual-clutch transmission, especially noticeable during gear shifts; or aging spark plugs with reduced ignition capability, leading to engine misfires and vibrations. If the fuel injection system is clogged, uneven fuel spraying can also cause shaking. To minimize issues, avoid aggressive acceleration during daily driving and regularly check the transmission fluid and ignition coils. If problems arise, don't ignore them—visit a 4S store promptly for computer diagnostics to prevent chain reactions that could damage other components. Safe driving brings peace of mind. Overall, prevention is more cost-effective and less labor-intensive than repairs.
