
Severe engine shaking is not normal. Under normal circumstances, a car engine should operate smoothly and rhythmically. The causes of engine shaking include: 1. Worn or loose engine mounts; 2. Carbon buildup in cylinders; 3. Carbon deposits in the throttle body; 4. Spark plug carbon buildup; 5. Intake system carbon deposits. An engine is a machine capable of converting other forms of energy into mechanical energy. It was invented in England and can refer to either the power generation device or the entire machine including the power unit (such as gasoline engines, aircraft engines). Engine types include internal combustion engines (e.g., gasoline engines), external combustion engines (e.g., Stirling engines, steam engines), and electric motors.

I've been driving for twenty years and have encountered severe engine shaking more than once. Let me tell you, this is definitely not normal. If you feel your car vibrating violently, especially during idling or acceleration, it's usually a problem with the ignition system—possibly worn-out spark plugs or damaged ignition coils. If not repaired promptly, it can lead to increased engine wear, and in severe cases, even piston ring breakage or complete engine failure. I recommend first checking simple components, like inspecting the spark plug electrodes for severe erosion or checking if the air filter is clogged. Replacing these parts yourself is both convenient and cost-effective. Also, don’t overlook the impact of poor fuel quality; using low-grade gasoline can make the engine shake more frequently. Regular maintenance habits can prevent these minor issues from escalating into major problems, saving you both money and time.

As an ordinary car owner, I've also panicked when the engine shakes violently, but this is not a normal phenomenon. It often signals ignition issues, such as worn-out spark plugs or excessive carbon buildup in the intake valves. In such cases, you might notice a sudden spike in fuel consumption, sluggish acceleration, and in severe situations, the risk of stalling midway becomes a real hassle. From my own experience, I first check if the air filter is dirty—cleaning or replacing it costs just a few bucks. If the shaking persists, it's time to consult a professional mechanic to diagnose whether the spark plugs need replacing. Never delay repairs; severe engine shaking can cause premature wear on mechanical components, leading to even costlier repairs. Regularly paying attention to fuel quality and choosing reputable gas stations for refueling can effectively prevent shaking, extend your car's lifespan, and save you money in the long run.

I've dealt with many cases of engine vibration during car repairs, and severe shaking is definitely abnormal. The most common causes are spark plug failure or sensor issues leading to uneven ignition, and sometimes too much engine oil can also cause continuous engine vibration. You should check if the spark plug gap is normal - it's as simple as adjusting it with a wrench. If that doesn't work, the throttle might be dirty and need cleaning. Address this minor issue promptly to avoid affecting driving safety, such as sudden stalling on the road.


