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While there may be many causes for your car’s vibration at higher speeds, never ignore the condition, as this may lead to other car issues.
Vehicles should run smoothly on roads at any speed. However, your car may have developed vibration issues over time. It’s one of those issues that are ignored. This article is for you if your car is also vibrating at a higher speed. Continue reading to explore more.
Short on Time – Here’s a Quick Summary
There are several reasons for car vibration at high speed. Some of the common causes include worn-out or unbalanced wheels. Other reasons for car vibrations can be loose lug nuts, bent or damaged inner CV joints, bent axles, broken brake rotor, etc.
Why Does Your Car Vibrate at High Speeds?
There are several reasons your car would vibrate at higher speeds. First, a car usually vibrates slightly while driving due to the rotation of the crankshaft and the transmission gears. While these vibrations may not distract you, it’s time to take action if they get violent.
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It is critical to note the place from where the vibrations are coming. So whenever you feel vibration at high speed, observe what might be the main cause.
Causes for Car Vibration at High Speed
Before we discuss the details, go through the table below to get the information ahead of reading the whole article.
| Vibration Causes | Possible Fixes |
|---|
| Unbalanced tires | Get the tires balanced and fix the alignment |
| Bad wheel bearing | Replace the faulty wheel bearings |
| Worn suspension parts and joints | Discover the faulty parts and get them repaired or replaced |
| Damaged or worn brake rotors | Get the rotors replaced |
| Loose lug nuts | Tighten the loose lug nuts |
| Lousy spark plugs | Clean or replace the lousy spark plugs |
| Damaged or worn shock breaker | Repair or replace the shock breaker |
| Damaged engine mounts | Replace the damaged engine mounts |
| Bent axle | Get the axle repaired or replaced as required |
| Bent driveshaft | Get it repaired or replaced |
Here is a list of causes of car vibrations at higher speeds and their possible solutions.
Unbalanced Tires
Tires play a significant role in enabling your car to drive smoothly on the road. If there is any issue with them, including the tire’s unbalanced position, your car will vibrate whenever you increase the speed. Unbalanced tires are one of the primary reasons for car vibrations.
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While driving at higher speeds, imbalanced tires will cause vibration that could worsen if you speed up and will cause your steering wheel to vibrate.
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Solution
You can avoid such issues with routine car inspections. Do a visual inspection of your wheels and tires whenever you feel vibrations at high speed. Also, check and adjust tire pressures. If you feel any issue with wheel alignment, head toward a mechanic and get the issue resolved.
Bad Wheel Bearing
A faulty wheel bearing is another reason your car might be vibrating. One of the common signs of a bad wheel is a vibration in the steering wheel. Other signs include a grinding noise in the cabin and while cornering. The faster you drive the car, the stronger the vibration and louder the grinding noise.
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Ignoring the symptoms of a faulty wheel bearing can become dangerous if you continue to drive. This can also cause the locking up of affected wheels.
Solution
If you feel any of the signs mentioned, a bad wheel bearing is yet to blame. So observe the bearings and replace the defective ones as soon as you discover them.
Worn Suspension parts & Joints
Loose suspension and steering joints can cause vibrations in your car while driving at higher speeds. In addition, it becomes difficult to align your vehicle due to worn ball joints and rod ends. Common signs of car vibration due to worn suspension joints and steering parts include front-end vibrations or vibrations through the steering wheel.
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In extreme cases, the vehicle’s front end can vibrate and shake violently at higher speeds.
Solution
Take your car to a mechanic and get the ball joints and other components inspected so that you can discover what might be causing the vibrations in your car’s front end or steering wheel.
Damaged or Worn Brake Rotors
Any problem with your car brakes can also make your car vibrate at higher speeds. If your car brake’s rotor is broken or worn out, you can identify it by doing this.
- Drive your car at high speed and step on your brakes.
- This way, you can check your brake disc.
- If the disc is worn out or broken, the braking force will reduce, and the vibration is caused whenever you apply a brake.
Solution
To get this issue fixed, take your car to an auto repair shop and get the discs replaced. Also, focus on the brake pads since they can also cause vibration if they are defective.
Loose Lug Nuts
This is another common problem that often arises after you visit an auto repair shop and the mechanic forgets to tighten the wheel nuts after working on the suspension. This can cause wheel wobble making it look like the car is shaking.
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Loose lug nuts, if not tightened on time, can loosen more and fall off, leading to a collision.
Solution
Always cross-checks such things whenever you visit a mechanic. For example, take a wrench to tighten the nuts if the lug nuts are loose. Avoid overlooking the nuts, as this may make it difficult to remove them next time you visit a mechanic.
I also found myself in this kind of situation once. Luckily, I was well aware of the causes and figured out that the wheel had loose lug nuts. As soon as I discovered the issue, I fixed it before it could create more problems.
Lousy Spark Plugs
As we know, dirty or faulty spark plugs can lead to engine misfires. If your car vibrates in an idle position, foul spark plugs are yet to blame. They can also cause your car to vibrate when driving.
Solution
Consider cleaning or replacing the spark plugs to avoid car vibration. Also, keep removing or cleaning only one spark plug. Whatever you do, replacing or cleaning, do it with all the spark plugs to avoid future inconvenience.
Damaged or Worn Shock Breaker
A shock breaker is there to help reduce the vibrations arising in your car when driving. If the shock breaker is damaged or worn out, it will cause car vibrations. Generally, the vibration will occur at high car speeds. However, if the vibrations also occur at low speed, the shock breaker is damaged and needs to be replaced.
Solution
Repair or replace the shock breaker as soon as you discover it has been damaged. Once you have replaced it, the vibrations will go away, and your car will start working at optimal performance.
Broken Engine Mount
The engine mount connects the engine to the car’s body. It further works as a damper. It will reduce car vibration to let the driver and passengers enjoy a smooth and comfortable ride. However, a broken engine mount will cause vibration in car seats at higher speeds. Also, it can even cause vehicle shakes at lower shakes.
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A broken engine mount can also cause misalignment on other parts of the vehicle, as the engine’s weight is not optimally balanced as it should be.
Solution
Since most engine mounts are irreparable, the ideal solution is to replace them. However, you can also repair some by changing the bushing inside the side. Moreover, we recommend inspecting all the engine mounts, as you may find more than one mount damaged on inspection.
Axle Problems
A worn or defective axle component can also cause unwanted car vibrations. The axle shifts the transmitting power of the engine to the wheels. If an axle is bent for different reasons, it will also cause vibrations. Please address this issue to avoid problems in other associated car components.
Solution
If you discover a bent axle, take your car to an auto repair shop and get the issue fixed. The issue can be fixed by either straightening or replacing the axle.
Bent Driveshaft
The driveshaft is responsible for connecting power from the front wheels to the back wheels. Over time, the components can bend and cause the car to shake when accelerating at low speeds. In addition, the vibration can worsen as the speed increases.
Solution
The only solution to this issue is to replace the component and eliminate the vibration from a bent driveshaft.
Conclusion
There can be several reasons why your car vibrates at higher speeds. We have mentioned some common causes and necessary fixes that you must do as soon as you discover a problem in your vehicle. For instance, unbalanced wheels can cause vibration. Get the wheel properly aligned to eliminate vibration. Moreover, loose lug nuts, lousy spark plugs, bad wheel bearings, bent axles, and broken engine mounts can also cause car vibrations at higher speeds.
FAQs
There can be different reasons for car instability at high speed. For example, tire pressure, uneven tire wear, and even unbalanced can make you feel your car is unstable.
The most common reason for car vibration at 70 mph is out-of-balance car wheels. In addition, vibrations can occur from the steering wheel across the seat and the vehicle’s floor.
Since there are different causes of car shakes at high speeds, their solutions depend on the root cause. For instance, if you feel the vibration coming from the engine, reduced power, fuel, or oxygen can be causing it.
If your car vibrates on highways, you might be experiencing this due to an underperforming engine. Get your engine checked if this issue continues.
Alignment issues in cars can cause them to vibrate constantly at higher speeds. Therefore, no matter whether you are braking or accelerating, you will feel consistent shaking due to misalignment.
