What Causes Trembling While Driving?
1 Answers
Introduction to the causes of trembling while driving: The main fault reason is the increase of carbon deposits in the throttle, intake tract, valves and other parts. When the car is cold, some gasoline is adsorbed, and when the car is hot, this gasoline evaporates, causing the mixture to be too rich when the engine is idling, leading to unstable hot idling. The following are specific reasons: 1. Severe engine carbon deposits: The most common cause of car trembling is a dirty throttle or excessive carbon deposits in the fuel injector. When there is too much carbon deposit inside the engine, the gasoline sprayed by the cold start injector will be largely absorbed by the carbon deposits, resulting in a too lean mixture during cold start, making it difficult to start. 2. Ignition system problems: Check the working condition of the spark plugs, high-voltage wires, and ignition coils. Poor performance of the ignition system or bad spark plug firing can also lead to such faults. 3. Unstable oil pressure: If you have already cleaned the engine carbon deposits, washed the throttle, replaced the oil pads and spark plugs, etc., and still find the car body trembling when idling, it is recommended to go to a 4S shop to check whether the fuel supply pressure and the intake pressure sensor are normal. If the fuel pump supply pressure is abnormal or the intake pressure sensor value is wrong and working poorly, it will cause the car body to tremble. 4. Aging engine components: Car trembling is also related to the aging of engine mounts. Engine mounts are actually the shock absorption system of the engine, responsible for absorbing the slight tremors when the engine is running. If there is a problem with the engine mounts, these vibrations will be transmitted to the steering wheel and the interior of the car, causing trembling when idling.
