What Causes a Car to Shake While Driving?

[StLuke]

Car shaking while driving can be attributed to the following reasons: Severe Engine Carbon Buildup: The most common symptom causing car shaking during driving is a dirty throttle body or excessive carbon deposits in the fuel injectors. When there is too much carbon buildup inside the engine, the gasoline sprayed by the cold-start injector can be largely absorbed by the carbon deposits, resulting in an overly lean air-fuel mixture during cold starts and severe shaking while driving. Ignition System Issues: Check the condition of the spark plugs, high-voltage wires, and ignition coils. Poor performance of the ignition system or improper spark plug firing can also lead to such shaking issues. Aging Engine Components: Car shaking can also be related to worn-out engine mounts. Engine mounts act as the shock absorption system for the engine, responsible for absorbing minor vibrations during operation. If the engine mounts are faulty, these vibrations will be transmitted to the steering wheel and the interior of the car.