One of the most common questions we get here at the shop is “Why does my car shake when I drive over 70 mph?”
There can be a number of reasons why your car is shaking, and it’s important to diagnose the issue as soon as possible. If you ignore the problem, it could lead to more serious problems down the road.
In this article, we’ll go over 19 major reasons why your car might shake when driving over 70 mph. By the end, you should have a good idea of what’s causing the problem and how to fix it.
If your car is shaking when driving over 70 mph, there could be a number of reasons why. Some of the most common causes include tire issues, wheel imbalance, and worn suspension components. However, there are a variety of other potential causes as well.
Tire Issues
One of the most common reasons why a car shakes when driving over 70 mph is due to tire issues. If your tires are old or bald, they can start to wobble at high speeds and cause your car to shake.
Additionally, if your tires are improperly inflated or not properly balanced, this can also lead to shaking. Be sure to check your tires regularly and replace them if necessary to avoid problems while driving at high speeds.
Wheel Imbalance
Another common issue that can cause your car to shake when driving over 70 mph is wheel imbalance. This occurs when one or more of your wheels is heavier or lighter than the others, which throws off the balance of your vehicle. Wheel imbalance can be caused by a variety of factors, such as bent rims or unevenly worn tires.
If you suspect that wheel imbalance is causing your car to shake, take it to a professional mechanic for an inspection and repairs.
Credit: offroadingpro.com
Why Does My Car Shake When I Go above 70?
One of the most common causes of a car shaking is having bad tires. If your tires are old or bald, they can’t grip the road as well, which can cause your car to shake. Another common cause of a car shaking is having warped brake rotors.
When your brake rotors get warped, it causes your brakes to vibrate when you use them, which can make your whole car shake. If you have bad shocks or struts, that can also cause your car to shake, especially when you go over bumps in the road.
What are 5 Possible Causes of a Shaking Vehicle?
A vehicle that shakes can be caused by a number of different things. Here are five possible causes:
1. Worn tires – If your tires are bald or have very little tread, they can cause your car to shake.
This is because they don’t provide as much grip on the road, causing your car to slip and slide more.
3. Damaged suspension – If your suspension is damaged, it can cause your car to shake. This is because the suspension isn’t able to absorb shocks as effectively, resulting in a rougher ride. 4. Loose steering components – If any of the steering components are loose, it can cause your car to shake.
This is because the component won’t be able to function properly, resulting in uneven steering input and potential instability. 5. Engine misfire – If one or more of your cylinders are misfiring, it can cause your car to shake violently.
What Causes a Car to Wobble When Driving at High Speeds?
If you’re experiencing a wobble in your car when driving at high speeds, it’s likely due to an issue with your tires or wheels. If your tires are unbalanced, it can cause them to vibrate and wobble at high speeds. Additionally, if your wheels are bent or out of round, they can also cause a wobbling effect.
You might also be experiencing a wobble if one of your suspension components is worn out or damaged. To get to the bottom of the issue, take your car to a qualified mechanic for an inspection.
Why Does My Car Shake at 90 Mph?
If your car is shaking at 90 mph, it could be due to a number of factors. One possibility is that your tires are unbalanced. This means that the weight of the tire is not evenly distributed, which can cause vibrations.
You can have your tires balanced by a professional mechanic.
Another possibility is that your wheels are out of alignment. This means that the wheels are not pointing in the same direction.
This can also cause vibrations, and can be fixed by a professional mechanic.
If your car is shaking at high speeds, it is important to get it checked out by a professional as soon as possible. It could be something simple like unbalanced tires or something more serious like wheel misalignment.
Either way, it’s best to get it checked out so you can avoid any potential problems down the road.
Vibration at Highway Speeds? How to fix it!
Car Shakes When Driving Over 80 Mph
If your car is shaking when you drive over 80 mph, there are a few potential causes. It could be something as simple as uneven tire wear or balance, or it could be something more serious like engine misfire or transmission problems.
If the shaking is only noticeable at high speeds, start by checking your tires.Uneven tread wear can cause a car to shake, especially at higher speeds. You may need to get your tires balanced or rotated to fix the issue. If the shaking persists even after you’ve checked the tires, it’s time to take your car to a mechanic for a closer look.
Engine misfires and transmission problems are two possible causes of shakes that aren’t related to the tires. A qualified mechanic will be able to diagnose and fix the problem so you can get back on the road without worry.
Car Shakes Intermittently at High Speeds
If your car shakes intermittently at high speeds, it could be a sign of a problem with your tires, suspension, or alignment. If you suspect that one of these is the issue, it’s important to have your car checked by a professional as soon as possible.
Tire problems are often the cause of cars shaking at high speeds.
If your tires are unbalanced or worn down, they can cause your car to shake. Suspension issues can also lead to shaking, particularly if your shocks or struts are worn out. Finally, improper alignment can also cause shaking, especially if your wheels are not pointing in the same direction.
If you’re not sure what’s causing your car to shake, it’s best to take it to a mechanic for an inspection. They will be able to diagnose the problem and recommend the best course of action. In most cases, fixing the problem is relatively simple and will only require a few adjustments or replacements.
However, if the problem is left unchecked, it could lead to more serious issues down the road.
Car Shakes at High Speeds Dangerous
If your car is shaking at high speeds, it’s important to get it checked out as soon as possible. While it may not be immediately dangerous, it could be a sign of a bigger problem that could eventually lead to an accident.
There are several potential causes of a car shaking at high speeds.
One possibility is that the tires are unbalanced or worn down. This can cause the car to vibrate and shake, especially at higher speeds. Another possibility is that the brakes are worn out or need to be replaced.
If your brake pads are getting thin or if you notice any other issues with your brakes, make sure to get them checked out right away.
Another potential cause of a car shaking at high speeds is engine damage. If there is something wrong with your engine, it can cause the entire car to shake.
This is usually accompanied by other symptoms like strange noises or smells coming from the engine bay, so if you notice anything else unusual going on with your car, have it checked out by a mechanic.
Vibration at 70-80 Mph
If you’re driving on the highway and notice your steering wheel or seat vibrating, it’s likely due to a phenomenon called resonance. Resonance occurs when the frequency of a vibration matches the natural frequency of an object. In this case, the natural frequency of your car’s suspension system is being amplified by the vibrations coming from the road.
This phenomenon is most likely to occur at speeds between 70 and 80 mph, because that’s when the frequency of the road’s surface imperfections (such as potholes) is closest to the natural frequency of your car’s suspension system. When resonance occurs, it can cause a significant increase in vibration, making it feel like your car is shaking apart.
Fortunately, there are a few things you can do to mitigate this problem.
First, make sure your tires are properly inflated; under-inflated tires will amplify vibrations from the road surface. Second, check your suspension components for any damage or wear; if they’re not in good condition, they’ll be more susceptible to resonance. Finally, if you regularly drive on highways at high speeds, consider upgrading your suspension system to one that’s better able to handle vibrations.
By taking these steps, you can help keep your car running smoothly and avoid potential damage from resonance.
Conclusion
If your car is shaking when you drive over 70 mph, it could be due to any of a number of reasons. Here are 19 possible causes, ranging from the relatively innocuous (such as uneven tire wear) to the more serious (like engine misfiring).
1. Uneven tire wear: If your tires are worn unevenly, they can cause your car to shake.
Be sure to check your tires regularly and have them replaced when necessary.
2. Loose wheel bearings: If your wheel bearings are loose, they can also cause shaking, particularly at high speeds. Again, be sure to have them checked and fixed if necessary.
3. Engine misfire: An engine misfire can cause shaking and reduced power. This is usually due to a problem with the ignition or fuel system, so it’s best to have it diagnosed by a mechanic.
4. Worn shocks or struts: Worn shocks or struts can lead to a rough ride and increased vibration, which can make your car shake at high speeds.
Be sure to have them replaced if they’re worn out.
5. Bent wheels: Bent wheels can also cause vibration and shaking, particularly at high speeds when there’s more force on the wheels. Have them checked by a mechanic or tire professional and repaired or replaced if necessary.
