My car shakes when braking

When I go to stop. The front of my cube shimmies back and forth.

My car has 58000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hi and thank you for contacting YourMechanic. That shimmy that you feel while braking is most likely your rotors are warped. This is due to excessive heat. Replacing your front rotors and brake pads will most likely take care of this issue. If you would consider, YourMechanic can send a certified technician to you and perform a brake inspection to avoid any unnecessary repairs. Thank you!

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Finally, one of the most popular reasons your car is wobbling while braking has to do with the guide pins found in your brake calipers, the part of your brakes that guide the brake pad to your rotor. When these parts are not well-lubricated, they can stick or cause the brake pad to meet the rotor incorrectly.
If you feel the shaking or vibration in your steering wheel and your brake pedal, it could be your rotors. The rotors get pressed by the brake pad to help slow your vehicle down, and if the rotors are out of balance, this could be causing the vibrating tremors that you feel in the pedal and steering wheel.
Common reasons for this to happen:

Loose connections at the positive and negative battery terminals. Very dirty or clogged air filters can also cause your engine to underperform.

Brakes – If the shaking occurs most often when you`re braking, it`s likely that the brake components are responsible for the shaking. Brake rotors that have worn down or lost their round shape will hinder brake pads and calipers from a proper grip or cause skipping.
A stuck brake caliper can also cause brake vibration. The caliper is the device that the brake pads are attached to, and a caliper pushes the brake pads to take hold of the rotors when you apply the brakes. Calipers can get stuck and when they do, you`ll experience shaking or a powerful pull to one side or the other.
The most likely reason that you feel vibrations through the brake pedal is because a brake rotor — the rotating disc that the brake pads are pressed against by the calipers to slow the wheel — is unevenly worn, or what some call “warped.” (It`s unlikely that a rotor could truly be warped from normal use as opposed to a …
Because the CV Axle joints are located right next to the vehicle`s wheels, any damage to them can directly affect your driving. If you suddenly feel as though your vehicle is vibrating more than normal, it can mean that you have a damaged halfshaft.
Any unusual shaking or vibrating forces coming from the engine is cause for concern. It could be something as simple as old spark plugs producing an uneven power delivery, it could be something serious like worn or broken engine mounts, or it could be even more serious in the case of internal engine damage.
A lot of four-cylinder engines vibrate in Drive when you`re stopped at a light. The reason is that by design, it`s not as smooth as a six- or eight-cylinder engine. RAY: Four-cylinder engines vibrate because they produce fewer explosions per turn of the engine`s crankshaft.
If your rotor is in poor condition, the brake pedal can vibrate when stopping. If this part of the system is scarred, warped, cracked, or rusted excessively, it can cause an uneven grabbing of brakes, which produces a pulsating feel when the brakes are applied.
One common cause of shaking while idling can be loose engine mounts. Engine mounts are the connections between your engine and your car — they keep your motor safely attached while dampening vibrations produced by your engine.
Some signs that your vehicle may have a bad brake caliper can include abnormal noise, reduced braking ability, fluid leaks, or the feeling that your vehicle is pulling to one side. Unlike brake pads that should be replaced consistently, calipers ought to last with the vehicle.
The ABS system works in tandem with the rest of the braking system to stop your vehicle quickly under hard braking. A faulty ABS wheel speed sensor can lead to longer braking distances under those situations.
If air gets into a brake line, it can produce uneven pressure across the brake calipers and pads, which could make the car shake when you apply the brakes.
When there is a rear brake shudder it will still feel like a grab-and-release type of vibration, but it will be coming from the rear of your Nissan Qashqai and you will feel the pulsating sensation through the brake pedal. The common culprit for rear brake shudder is uneven brake rotors (brake discs).
If vibration is felt at certain speeds, the tires may need to be balanced. If the tires are wearing unevenly and causing the car to vibrate, the driver may need a tire rotation. In some cases, the driver may need new tires to solve the problem of vibration.
The most common reasons for your car to excessively vibrate are a problem with your tyres, wheels, brakes, steering, suspension, axle or engine.
If you begin to feel persistent shaking in your car, it`s best that you get to the problem right away before continuing to drive. Continuing to drive with the shaking can result in further damaging parts, ruining your tires, and other costly problems that could be avoided by a quick trip to your mechanic.
A: A four-cylinder engine will typically have a slight vibration when idling. This is inherent in the design and may in fact be normal.
The brake disc developing disc thickness variation (DTV) over time, is the most common cause of judder. Disc thickness variation is when the disc has worn unevenly, causing the two friction surfaces of the disc to no longer be parallel with each other. This is often confused with disc warping.
The most common reason for a car to shake is related to tires. If the tires are out of balance then the steering wheel can shake. This shaking starts at around 50-55 miles per hour (mph). It gets worse around 60 mph but starts to get better at high speeds.
Removing a wheel speed sensor will disable ABS—and sometimes, stability control. If your car has a yaw sensor, you can unplug that for results. You can also try simply unplugging the ABS module, though that could adversely affect your car`s braking performance.

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ANSWER : The rule of thumb is: if you feel it in the steering wheel and the steering shaking back and forth when braking, then the front rotors are warped. If you feel the vibration more in your seat he seat of your pants, then the rears rotors are warped. It’s not out of the question for all four to be warped. If you need to have this repaired, a certified professional from YourMechanic can come to your car’s location to diagnose the steering shake and replace the rotors as necessary.

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Read Full Q/A … : My car shakes when braking

Shaking while braking
ANSWER : Hello. I’ve had experience with new rotors being warped right out of the box. There is a limited warranty on the rotors from the store. If you can return them and get new front rotors or get them turned, that would be a good idea.

Hot spots normally don’t cause this problem in rotors, but it is more likely possible that there is a loose or worn wheel bearing in the front of the car. Also, loose or worn control arms, and worn-out lower ball joints can also cause this problem.

I would suggest you get your brakes and suspension inspected by a certified technician, such as one from YourMechanic.

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