What's the reason for engine warning light and car shaking?

[SanAriana]

The cause is engine malfunction. Here are the reasons for engine problems: 1. Engine misfire: This refers to when one cylinder in a multi-cylinder engine stops working, causing symptoms like abnormal shaking and weak acceleration. Professional inspection and repair are needed. 2. Engine overheating: After prolonged or aggressive driving, engine temperature may exceed normal levels triggering the warning light. Simply park to let it cool naturally. 3. Severe carbon buildup: Excessive carbon deposits can cause weak acceleration and increased fuel consumption, requiring timely cleaning. 4. Poor fuel quality: Low-quality fuel affects engine performance, requiring switching to higher quality fuel.

[ReidRose]

Oh no, my engine warning light suddenly came on, and the car is shaking badly. I've encountered this issue quite a few times. It's usually caused by faulty spark plugs or ignition coils, leading to misfiring in one of the cylinders. Common reasons include excessive carbon buildup from long-term lack of maintenance or poor fuel quality. You'll notice significant steering wheel vibration, especially at idle. It needs immediate attention—first, use an OBD scanner to read the trouble codes. If it shows ignition system codes, just replace the spark plugs. If it's a fuel system issue, the injectors might be clogged. Definitely don't drive it long distances like this, or the engine could suffer serious damage. Regularly pay attention to oil and air filter changes—preventive maintenance can save you a lot of trouble.

[DiLandon]

I remember experiencing the same issue not long ago. While driving, the car suddenly started shaking violently with the warning light flashing yellow, which made me quite nervous. After taking it to the repair shop, they found out it was due to aging ignition coils. The mechanic mentioned this is a pretty common problem, especially after frequent start-stop driving in the city. When carbon buildup increases, the ignition becomes unstable. He suggested doing some simple checks first, like listening for a sputtering sound from the engine, which indicates a misfire. But he warned against tinkering blindly, as replacing spark plugs incorrectly could make things worse. For safety, it's best to go straight to a professional shop to read the fault codes and address the issue accurately. Using higher-quality gasoline and regularly cleaning the fuel system can help prevent this.

[JulietMarie]

Engine warning and shaking are mostly caused by ignition system or fuel system failures. Faulty spark plugs or carbon-clogged fuel injectors can lead to cylinder misfires, affecting balance and causing the car to shake. Avoid driving too fast to prevent stalling or engine damage. First, stop and check the engine oil level and air filter condition. If there's no improvement after simple maintenance, take it to a repair shop for computer diagnostics. Common trouble codes like P0300 indicate random misfires. Regular maintenance on schedule can prevent such issues.