What is the solution for idle vibration in the 10th-generation Civic?
1 Answers
Introduction to the solution for idle vibration in the 10th-generation Civic: The most common cause of car vibration is a dirty throttle body or excessive carbon deposits in the fuel injectors. Additionally, the lower the temperature, the more fuel is required for a cold start, and the presence of carbon deposits can significantly affect the smoothness of the cold start. The solution is to clean the fuel system and check the idle control valve for carbon deposits, which should be cleaned if necessary. Below are the detailed explanations of related content: 1. Severe engine carbon deposits. The most common cause of car vibration 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, making it difficult to start. 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 drawn into the combustion chamber by the engine's vacuum, causing the air-fuel mixture to become too rich. The engine's combustible mixture alternates between being too lean and too rich, leading to idle vibration after a cold start. 2. Ignition system issues. Check the condition of the spark plugs, high-voltage wires, and ignition coils. Poor performance of the ignition system or weak sparking from the spark plugs can also cause such issues. The solution is to check if the spark plugs have excessive carbon deposits and replace them if necessary. 3. Unstable fuel pressure. If you have already cleaned the engine carbon deposits, throttle body, replaced the gaskets, and spark plugs but still experience idle vibration, it is recommended to visit a 4S shop to check the fuel supply pressure and the intake pressure sensor. Abnormal fuel pump pressure or incorrect readings and poor performance of the intake pressure sensor can cause car vibration. The solution is to check the fuel pressure and replace components if necessary. 4. Aging engine components. Car vibration can also be related to worn engine mounts. Engine mounts are essentially the shock absorbers for the engine, responsible for absorbing minor vibrations during operation. If the engine mounts are faulty, these vibrations can be transmitted to the steering wheel and the cabin, causing idle vibration.
