Is It Normal for a New Car's Engine to Shake at Idle?
1 Answers
It is normal for a new car's engine to shake at idle. Generally, when a car starts cold, the engine speed will fluctuate between 900 to 1100 RPM, causing slight shaking. After warming up, the RPM will stabilize around 800 RPM, reaching a normal level. However, if the idle shaking is excessive, it is advisable to visit a repair shop or a 4S store for professional inspection. Possible causes of engine idle shaking include: 1. Ignition system issues; 2. Poor fuel quality; 3. Excessive carbon buildup inside the engine; 4. Fuel injector malfunction. If the owner is concerned, they can request a professional inspection.