What Causes My Car to Shake Over 70 mph? (Explained)

What Causes My Car to Shake Over 70 mph? (Explained)

Driving at high speeds can be exhilarating, but it can also be unnerving when your car starts to shake. If you’ve ever experienced this, you may wonder what causes your car to shake over 70 mph.

In this article, we will explore some of the common reasons why your car may shake at high speeds and what you can do to address the issue.

1. Wheel Balancing Issues

One of the most common causes of car shaking at high speeds is wheel balancing issues. Over time, the weights that are used to balance your wheels can become loose or fall off, causing an imbalance. This imbalance can result in vibrations that are felt through the steering wheel and the rest of the car.

If you suspect that your wheels are out of balance, it is important to have them checked and rebalanced by a professional. They will use specialized equipment to ensure that the weights are properly distributed and that your wheels are balanced correctly. This can help eliminate the shaking sensation when driving at high speeds.

2. Tire Problems

Tires that are worn unevenly or have low tread can also cause your car to shake at high speeds. When the tires are not in optimal condition, they can create vibrations that are felt throughout the vehicle. Additionally, if your tires are not properly inflated, it can affect the way your car handles and may lead to shaking.

To address this issue, it is important to regularly inspect your tires for signs of wear and tear. If you notice uneven wear or low tread, it may be time to replace your tires. Additionally, make sure to check your tire pressure regularly and inflate them to the recommended levels. This can help improve the stability of your car at higher speeds.

3. Suspension Problems

A faulty suspension system can also be a culprit behind a car shaking at high speeds. The suspension system is responsible for maintaining the stability and smoothness of your ride. If any of the components, such as the shocks or struts, are worn or damaged, it can cause your car to shake.

If you suspect that your suspension system is the source of the problem, it is best to have it inspected by a professional mechanic. They will be able to identify any issues and recommend the necessary repairs or replacements. Taking care of suspension problems can not only eliminate the shaking but also improve the overall performance and safety of your vehicle.

4. Brake Issues

Brake problems can also contribute to car shaking at high speeds. If your brake rotors are warped or worn unevenly, it can result in vibrations when you apply the brakes. This shaking can be felt through the steering wheel and may worsen as you increase your speed.

To address brake-related shaking, it is important to have your brakes inspected and serviced regularly. This includes checking the condition of the rotors and brake pads, as well as ensuring that everything is properly lubricated. If necessary, the rotors may need to be resurfaced or replaced to eliminate the shaking.

5. Engine Issues

In some cases, engine problems can also be a factor in car shaking at high speeds. Issues such as misfiring cylinders, worn spark plugs, or a malfunctioning fuel injector can cause the engine to run unevenly. This can result in vibrations that are felt throughout the vehicle.

If you suspect that your engine is the source of the shaking, it is important to have it diagnosed by a qualified mechanic. They will be able to identify any underlying issues and recommend the necessary repairs. Taking care of engine problems can not only eliminate the shaking but also prevent further damage to your vehicle.

6. Wheel Alignment Problems

Another potential cause of car shaking at high speeds is wheel alignment problems. When your wheels are not properly aligned, it can lead to uneven tire wear and vibrations. This can result in a shaky and uncomfortable ride, especially at higher speeds.

To address this issue, it is important to have your wheels aligned by a professional. They will use specialized equipment to adjust the angles of your wheels and ensure that they are aligned correctly. This can help improve the stability and smoothness of your ride, reducing or eliminating the shaking sensation.

7. Axle or Driveshaft Issues

In some cases, car shaking at high speeds may be caused by problems with the axles or driveshaft. If any of these components are damaged or worn, it can result in vibrations that are felt throughout the vehicle.

If you suspect that your axles or driveshaft are the source of the shaking, it is important to have them inspected by a professional mechanic. They will be able to determine if any repairs or replacements are necessary to resolve the issue. Taking care of axle or driveshaft problems can help restore the smoothness and stability of your ride.

Stay Safe and Enjoy the Ride!

By addressing the potential causes of car shaking at high speeds, you can ensure a safer and more enjoyable driving experience. Remember to seek professional help when necessary and to perform regular maintenance on your vehicle. Safe travels!

Conclusion

Experiencing car shaking at high speeds can be both unsettling and potentially dangerous. By understanding some of the common causes of this issue, you can take the necessary steps to address the problem and ensure a smooth and safe driving experience. Whether it’s wheel balancing, tire problems, suspension issues, brake problems, engine issues, wheel alignment problems, or axle/driveshaft issues, seeking professional help and timely maintenance can help eliminate the shaking and keep your car running smoothly.

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