What are the reasons for the engine shaking during startup of the BYD F3?
2 Answers
The reasons for the engine shaking during startup of the BYD F3 are: 1. Malfunctioning water temperature sensor; 2. Carbon buildup on valves and intake ports; 3. Fuel quality issues; 4. Deviations in cylinder conditions; 5. Unstable oil pressure. The engine is applicable both as a power generation device and can refer to the entire machine including the power device (such as gasoline engines, aircraft engines). The BYD F3 is a compact 4-door, 5-seater sedan with dimensions of 4533mm in length, 1705mm in width, and 1490mm in height, and a wheelbase of 2600mm. This car is equipped with a 1.5L naturally aspirated engine and a 5-speed manual transmission, delivering a maximum power of 80 kW and a maximum torque of 148 Nm, with a front-engine, front-wheel-drive layout.
As an auto mechanic, I often encounter the issue of engine shaking during startup in BYD F3 models, which is mostly caused by ignition system failures. For example, worn-out spark plugs or loose ignition coils can lead to uneven engine ignition, causing severe shaking as soon as the car starts. Another common reason is the wear of engine mounts, which are responsible for securing the engine. If they crack and lose their damping effect, the shaking becomes particularly noticeable during startup and acceleration. Some car owners also report carbon buildup in the fuel injectors, leading to uneven fuel supply and unstable engine RPM. If ignored, prolonged shaking can potentially damage the engine block or even affect the transmission. It's advisable to pay attention to regular maintenance and replace spark plugs or engine mounts as needed, rather than waiting for major issues to arise before fixing them.
