Auto Loan Guide Vehicle Car Shaking When Turned On

Car Shaking When Turned On


Car Shaking When Turned On: Causes, Solutions, and FAQs


One of the most common issues car owners face is their vehicle shaking when turned on. This problem can be quite alarming, as it affects the overall driving experience and may indicate underlying mechanical issues. In this article, we will explore the reasons behind a car shaking when turned on, possible solutions, and address frequently asked questions to help you better understand and resolve this problem.

Causes of Car Shaking When Turned On:

1. Engine Misfire: A misfiring engine is one of the primary reasons for car shaking. It occurs when the fuel and air mixture in the cylinders fail to ignite properly, resulting in unbalanced engine performance. Misfires can be caused by faulty spark plugs, fuel injectors, ignition coils, or a clogged air filter.

2. Worn or Damaged Engine Mounts: Engine mounts are responsible for securing the engine to the chassis, reducing vibration and noise. If these mounts wear out or become damaged, the engine’s movement can transmit to the vehicle, causing shaking.

3. Unbalanced or Damaged Tires: Uneven tire wear, improper inflation, or damaged tires can result in vibrations when the car is turned on. It’s crucial to regularly check tire condition, balance, and alignment to avoid this issue.

4. Fuel Delivery Issues: Problems with the fuel delivery system, such as a clogged fuel filter or malfunctioning fuel pump, can lead to inadequate fuel supply to the engine. Insufficient fuel can cause engine misfires and subsequent shaking.

5. Faulty Ignition System: A malfunctioning ignition system, including ignition coils, spark plugs, or ignition control module, can result in inadequate combustion, leading to car shaking when turned on.

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Solutions to Car Shaking When Turned On:

1. Regular Maintenance: Preventive maintenance is crucial to avoid car shaking issues. Schedule periodic tune-ups, oil changes, air filter replacements, and fuel system cleanings to keep your vehicle running smoothly.

2. Check Engine Light Diagnosis: If your car’s check engine light is on, it’s important to have it diagnosed by a qualified mechanic. They can identify the specific problem causing the shaking and recommend appropriate repairs.

3. Inspection and Replacement of Engine Mounts: If worn or damaged engine mounts are causing the shaking, they will need to be inspected and replaced. A professional mechanic can determine the extent of the damage and replace the mounts as necessary.

4. Tire Inspection and Balancing: Regularly inspect your tires for wear and tear, and ensure they are properly balanced and inflated. If any issues are detected, seek professional help to have them addressed.

5. Fuel System Maintenance: Regularly replace the fuel filter and have the fuel system inspected to ensure proper fuel delivery. Also, check the fuel pump’s functionality to avoid issues that may cause car shaking.


Q1. Can a shaking car be driven?
A1. It is best to avoid driving a car that shakes when turned on. Continued driving may exacerbate the problem and potentially cause further damage. Have the issue diagnosed and repaired before resuming regular use.

Q2. Why does my car shake only during startup?
A2. Shaking during startup can be caused by engine-related issues, such as a misfire or faulty ignition components. These problems tend to be more prominent when the engine is cold or starting up.

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Q3. How much does it cost to fix a car that shakes when turned on?
A3. The cost of repairs depends on the underlying issue causing the shaking. Minor issues such as replacing spark plugs or tires may cost less, while major engine repairs can be more expensive. It is advisable to consult with a mechanic for an accurate estimate.

Q4. Can car shaking be dangerous?
A4. While car shaking itself may not be dangerous, it often indicates an underlying issue that could compromise safety or lead to a breakdown. It is essential to address the problem promptly to ensure a safe driving experience.


Experiencing a car shaking when turned on can be concerning, but with proper diagnosis and timely repairs, most issues can be resolved. Regular maintenance, careful inspection of engine components, tires, and fuel system, along with professional assistance, will help keep your car running smoothly and prevent further shaking-related problems. Remember, addressing any issues promptly is crucial to ensure your safety and the longevity of your vehicle.

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