What causes severe jerking and shaking during acceleration of the BYD Song?

[Holden]

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.

[Maci]

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.

[Gerald]

As a BYD Song owner, I find the acceleration vibration significantly impacts the driving experience. There are several main causes: malfunction of the transmission control module leading to rough gear shifts; aging or loosening of the engine mounts intensifying vibrations during acceleration; or unstable fuel pump pressure causing insufficient fuel supply and resulting in shaking. I've noticed a marked improvement by gently pressing the accelerator and avoiding sudden starts and stops. It's advisable to check these points. If the issue persists, consulting a professional technician is recommended to prevent minor issues from escalating into major repairs. Regular maintenance is also crucial—cleaning the fuel injectors and suspension components can greatly reduce risks. Driving safety is no trivial matter and deserves serious attention.

[Beckett]

Severe acceleration hesitation and shaking in the BYD Song often stem from ignition system issues like excessive spark plug gap or coil damage. It could also be caused by unbalanced tires or loose engine mounts. From my experience, replacing a set of new spark plugs solves most cases. Don't forget to check the circuit grounding wires as poor contact can also cause trouble. Address it early to avoid worsening.

[DelLena]

When driving my BYD Song, the shaking during acceleration is quite unpleasant. It's usually related to a clogged fuel filter or ECU software malfunction; worn universal joints on the drive shaft can also amplify vibrations. When traveling with family, the shaking makes passengers uncomfortable, so priority should be given to checking the transmission and fuel injection system. Maintaining a steady speed while driving and regular maintenance can prevent these issues.

[MayaLynn]

I drive a BYD Song, and the acceleration is jerky and shaky, severely affecting comfort. The causes are mostly carbon buildup in the intake system or sensor failure; insufficient transmission fluid is also a risk. Early repairs save fuel costs, and long-term neglect can damage the engine. It's recommended to start with simple checks, such as replacing spark plugs or cleaning the intake tract, which can resolve most issues. Don’t neglect maintenance records to ensure driving reliability.