What to Do When a Car Engine Shakes?

[DeJoseph]

Solutions for car engine shaking: 1. Slight shaking is normal, but if the shaking is severe, it needs to be checked. The most common cause of car shaking is a dirty throttle body or excessive carbon deposits in the fuel injectors; 2. Carbon deposits include cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, and intake carbon deposits. These areas are directly related to the engine's power output. When there is too much carbon deposit inside the engine, the car's ignition energy decreases, and the intake efficiency drops, ultimately leading to symptoms such as engine shaking and weak acceleration; 3. If the starting mixture is too lean, it makes starting difficult. In this situation, the car will only start easily once the carbon deposits have absorbed enough gasoline to become saturated. After starting, the gasoline adsorbed on the carbon deposits will be sucked into the cylinder by the engine's vacuum suction for combustion, making the mixture too rich. This results in an inconsistent mixture of combustible gases in the engine, causing idle shaking after a cold start.