Why Is My Car Shaking and the Engine Light On?: 1 Minute to Understand Common Causes and Solutions

If your car is shaking and the engine light is on, it’s a sign that there's a mechanical or electronic issue that needs immediate attention. Common causes include misfires from faulty spark plugs, ignition coils, or fuel injectors. A failing mass airflow sensor, bad oxygen sensor, or malfunctioning catalytic converter can also trigger both the engine light and noticeable vibrations. In some cases, problems with the transmission, engine mounts, or wheel alignment contribute to shaking, though these issues usually don’t turn on the engine light unless they affect critical sensors. It’s important to stop driving and have your vehicle checked by a professional to prevent further damage.

Tips 1:

As an interior designer who often recommends comfortable and quiet driving environments, I’ve noticed that persistent vibrations and warning signals not only affect vehicle safety but the comfort of your driving space. Just as home design benefits from planning and the right tools, maintaining balance and harmony in your car cabin is essential. If you’re redesigning your garage or creating a designated car care area, consider using a room planner to optimize both safety and convenience.

FAQ

Q: Can low engine oil cause my car to shake and trigger the engine light?

A: Yes, low engine oil can lead to poor lubrication and engine misfires, resulting in both symptoms.

Q: Is it safe to drive when both the engine light is on and the car shakes?

A: It’s generally unsafe. Continuing to drive may worsen the problem and create expensive repairs.

Q: Will a bad spark plug cause the engine light and shaking?

A: Absolutely. Faulty spark plugs can cause misfires, which appear as both shaking and a triggered engine light.

Q: Should I try to diagnose the problem myself?

A: If you have experience with vehicles, you can check for obvious issues, but visiting a mechanic for a diagnostic scan is recommended.

Q: Can old or worn engine mounts cause similar symptoms?

A: Worn engine mounts can cause shaking but rarely trigger the engine light unless another electronic issue is present.