Car Shaking When Braking at High Speeds – Top 10 Possible Causes

Whether you are a car enthusiast or not, as a diver, you definitely have a strong connection with your car. So you know when something is not right with your vehicle, especially when it’s shaking unusually while driving.

A car shaking when braking at high speeds is not a good sign, and when the shaking becomes more apparent at 60 – 70 mph, know that you are in TROUBLE. Some even experience the brake pad pulsating as the car shakes. But the real question is, what causes this shaking?

There could be more than one reason your car vibrates when braking at high speeds. Maybe you have worn-out front rotors. However, you still need to get it checked professionally to figure out why this thing happens and how to resolve it. To ease your work a bit, we discovered eleven possible reasons why the car shakes when you brake at high speeds.

A car usually doesn’t shake or vibrate in a healthy state. However, if it’s happening, it might be because of the following reasons:

10 Reasons your Car vibrates when Braking at High Speeds

When you drive a car, all you have in mind is a cruise drive which will give you some peace of mind. How big of a bummer it is when out of nowhere, you experience vibration amidst driving that almost cost you your life.

But worry not. Here we have listed some major reasons why a car vibrates so that you can figure out what to do and when to get it checked.

1. Worn Tires

If your car shakes at 50 to 60 mph and stops at higher speeds, you may have worn tires. When this is the case, there is a high possibility that you feel disturbance and shakiness while driving. Fortunately, it is not a big problem and can be resolved by getting your tires balanced from an auto repair shop.

If you are sure you have worn tires and feel shaking more often, you may need to replace them with new or second-hand tires.

2. Brake Rotors out of Balance

If you specifically feel the shaking or vibration in the brake pedal and steering wheel, it indicates that your rotors are out of balance. If this is the case, you will feel your steering wheel trembling while driving at high speeds. Try to contact a braking system expert to assist you with the issue.

Bear in mind that warped brake rotors are often the result of wear and tear since they suffer a great amount of heat and therefore deform while braking. Therefore, they must be replaced occasionally to prevent shaking. Also, you can get a second opinion from your trusted mechanic for other solutions.

3. Issues with a Caliper

If you only feel the vibration in the steering wheel while driving at high speeds, know that there is something wrong with your brake calipers. Brake calipers’ job is to create friction in the wheels to slow them down. They fit like a clamp on the top of the wheel’s

Rotor, stopping the wheels from turning as your press the brake.

The vibration happens when the brake calipers stick and fails to press the brake pads against the rotors. Learn here the difference between brake pads and brake shoes.

4. Loosen Suspension Parts and Joins

Worn suspension or steering system parts can be another because you experience a shaky steering wheel. Excessively loosen boil joints make it difficult to properly align your vehicle. If you are caught in such a situation, take your car to a mechanic and ask them to closely check ball joints and other components to determine if they are causing your steering wheel to shake.

5. Engine and Transmission

If you feel that the vibration starts when you drive your car and continues even after the car is stopped while the engine is on, or you hear a strange noise when the car vibrates, you need to focus on the engine and transmission to find your answers.

Such a thing happens when you have a loose or broken engine or transmission mount or a torn radiator fan, causing a noticeable shaking when it is rotating. That said, most modern cars have electrical radiator fans that only function when the coolant temperature exceeds a certain level.

If you notice that the vibration only happens when the engine is a little warmer, the fan could cause it, which is quite rare.

6. Wheel Bearing and Steering Wrack

Wheel bearing and steering wrack are crucial components in the wheel mechanism. When you experience vibration or shaking followed by noise while braking, chances are high that there is a problem with any of these components.

The noise may be soft and quiet in the beginning; however, as you speed up your vehicle, it gets rumble and deep. In such cases, it’s better to get your car checked by an expert. If you want to get your wheel bearing replaced, check this guide.

7. Bent Driveshaft

If your car has a rare wheel drive, you can expect to experience this problem. In rare wheel drive cars, the driveshaft helps deliver power from the engine to the rear axle. So when the driveshaft is damaged or bent, it will shake the car when you reduce the speed. The vibration intensifies as you gradually increase the speed.

So what does it mean when your car vibrates? It means your driveshaft is bad, and you must replace it as the damaged one cannot be repaired.

8. Bent Rim

If you feel the shaking underneath or behind the seat, it could be a sign of a bent rim. Since it deforms the tire’s perfect circle shape, some parts may not touch the road anymore. Fortunately, you can easily conclude the damaged part by determining where you experienced the vibration.

9. Flat Brake Pads

As we said earlier, being a crucial component of a car, the brake pad experiences pressure and heat almost on a daily basis. After a while, you must replace them with new ones since they go through wear and tear.

Failure to do that will lead to uncomfortable shaking with a strange high-pitched sound. The best way to know if your brake pads need to be changed is to check their size. If it’s ¼ of their original size, know that it’s high time. However, if you regularly check on them, they may go for longer.

10. Dry or Dirty Dry Guide Pins

While the Dry Guide Pins issue sounds simple and manageable, they can cause your car to vibrate, specifically the steering wheel, when you brake. This happens when dry guide pins become too dirty or dry. The easiest way to solve this problem is just to remove, clean, and lubricate them, and you are set to take your car to long routes!

Car Shake when I brake at 60 mph

Many people complain that their car shakes when driving at a low speed, around 50 to 60 mph but stops as they increase their speed. If that’s the case with you, too, you need to get your tires checked, as they are likely out of balance. Here is a more detailed guide on how to stop a car from shaking while braking.

Why does my Car Shake when I brake at 70 mph?

If you feel vibrations when braking at high speeds or as soon as you hit 70 mph, you are likely having a problem with your wheels. Maybe they are out of balance, or their alignment is out. You can take your car to your local repair shop to check if this is why you are experiencing vibration or if there is another problem you need to get fixed.

Why does my Car Shake when Slowing down at High Speed?

If the vibration or shaking appears only when you are braking, the brake components might be responsible for it. When brake rotors are worn down, they lose their original circular shape; hence the deformed shape hinders calipers and brake pads from working properly.

Will an alignment fix Shaking?

While it is not necessary, wheel alignment fixes the issue in most cases. You can resolve the shaking issue by ensuring all of them are perfectly aligned o positioned in the same direction. If you are wondering how to determine if your car needs wheel alignment, just check the wheel’s tread. If they seem uneven with the worn inside tread, know they are out of alignment.

How much does it cost to replace Rotors?

It’s a good idea to replace rotors with brake pads because worn rotors barely function, even with brand-new pads. You can get your hands on new rotors for between $150 to $300 per axle minus the labor cost. In total, you can expect to pay $250 to $500 for each axle.

Can ABS cause Brake Shudder?

When you press the pedal, and the anti-braking system is activated, you may find the pedal stiffer than usual, which is normal. Also, this may cause the pedal to vibrate or make it ratchet, which again is normal and nothing to be concerned about.

Final Word

Car vibration problems can be troublesome, in fact, they can lead to accidents in some cases. However, once you know the root cause of the problem, half your job is done there. Then, depending on the complexity of the problem, you need to decide whether to fix it yourself or leave it to the expert.

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