What are the reasons for severe engine vibration in the Lingdong?

[DeJuliette]

The reasons for severe engine vibration in the Lingdong are: 1. Low engine temperature; 2. Severe engine carbon buildup; 3. Engine misfire; 4. Spark plug failure. Taking the 2020 Lingdong as an example, it is a compact car with body dimensions of: length 4610mm, width 1800mm, height 1450mm, wheelbase of 2700mm, minimum ground clearance of 152mm, and a body weight of 1319kg. The 2020 Lingdong is equipped with a 1.4T turbocharged engine, delivering a maximum horsepower of 130PS, maximum torque of 211Nm, and maximum power of 95.6kW, paired with a 7-speed dual-clutch transmission.

[SkylarFitz]

I used to drive a Hyundai Elantra, and the engine shook badly, possibly due to worn-out spark plugs or a faulty ignition coil, causing uneven ignition and noticeable vibrations when accelerating. Additionally, excessive carbon buildup in the throttle body can affect air intake, leading to severe shaking at idle, which requires cleaning. A clogged air filter can also restrict airflow, preventing the engine from drawing in enough air, resulting in unstable operation. Sometimes, fuel system issues, such as clogged fuel injectors causing uneven fuel delivery, can also trigger shaking. It's advisable to start by checking the simplest components, like replacing the spark plugs yourself. If the problem persists, visit a professional workshop to inspect the electrical and fuel systems. Don't overlook minor issues, as they can escalate into high fuel consumption or engine damage.

[MacCorbin]

As someone who enjoys tinkering with cars, I've found that severe engine shaking is often related to intake issues. For example, if there's a leak or crack in the intake pipe, air leakage causes uneven air-fuel mixture, leading to shaking upon startup. Sensor malfunctions, such as abnormal camshaft position sensors, can also cause severe engine vibration as the ECU can't precisely control ignition timing. Poor fuel quality or a dirty fuel filter restricting fuel flow can make the engine run unevenly. Additionally, worn or loose engine mount rubbers with insufficient support can transmit vibrations into the cabin. I recommend regular air filter maintenance, using quality fuel, and when noticeable shaking occurs, using a diagnostic tool to read fault codes - starting sensor checks is a more reliable approach for troubleshooting.

[LauraAnn]

When repairing cars, I've encountered many Elantra models with severe engine shaking, mostly due to ignition system issues. Worn spark plugs or cracked high-voltage wires causing ignition misfires—simply put, when some cylinders fail to ignite, the car shakes. It could also be insufficient cylinder pressure or poor valve sealing leading to incomplete combustion, especially noticeable at idle. Low fuel pump pressure or clogged injectors causing uneven fuel supply can also make the engine vibrate. During repairs, first measure cylinder pressure, replace spark plugs and filters if necessary, and ensure normal oil pressure to save trouble.