Car Makes a Knocking Noise When I Brake

Last Updated on May 14, 2023 by Ryan

A knocking noise when braking can be caused by a few different issues. One of the most common causes is worn brake pads or shoes that are not making contact with the rotors or drums properly, causing them to vibrate and create a knocking sound. Another possible cause could be dirt, rust, etc., that has built up on the rotors/drums which may also cause them to vibrate and make this type of noise.

If these parts have become excessively worn or contaminated then they will need to be replaced in order to fix the problem. Additionally, it might indicate an issue with one of your wheel bearings as well so checking for any play in those should also be done just in case.

If you’re driving and notice a knocking noise when you brake, it’s important to get it checked out right away. It could be something as simple as loose lug nuts or something more serious like worn suspension parts. Whatever the cause, having an experienced mechanic inspect your car can help ensure that any necessary repairs are made before bigger issues arise.

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Knocking When Braking at Slow Speed

When braking at slow speeds, it is important to keep an eye out for ‘knocking’ noises or vibrations. Knocking when braking can be caused by a variety of issues, including warped brake rotors, worn brake pads, or broken calipers. If you experience knocking while braking at low speed, have your brakes checked as soon as possible to avoid further damage and costly repairs.

You Can See:

Knocking Sound When Braking Front

When you hear a knocking sound when braking in the front of your vehicle, it could be an indication that there is something wrong with your suspension system. This can happen for a variety of reasons such as worn-out shocks or struts, broken springs, loose ball joints, or even wheel alignment issues. It’s important to get this issue checked out by a professional mechanic so they can determine the cause and provide necessary repairs.

Knocking Sound When Braking Rear

Drivers may be alarmed to hear a loud knocking sound when they brake their rear wheel. This can indicate an issue with the brakes, and often indicates that the brakes need either to be adjusted or replaced. In some cases, it can also mean that there is a problem with suspension components, such as worn-out bushings or shocks.

If drivers experience this noise while braking in their vehicle, they should take it to a qualified mechanic for inspection and repair as soon as possible.

Knocking Noise When Braking at High Speeds

If you are hearing a knocking noise when braking at high speeds, it could be caused by warped brake rotors. Warped brake rotors occur when the metal of the rotor is heated up and cooled down unevenly due to frequent hard braking or driving in extreme temperatures. This can cause the metal to become deformed and create a knocking sound as your brakes wear out over time.

If this is happening, it would be best to get them replaced immediately before further damage occurs.

Car Makes a Knocking Noise When I Brake


What Causes a Car to Make a Knocking Noise When I Brake

When a car makes a knocking noise when you brake, it is usually the result of worn-out brake pads. The brake pads are designed to absorb and dissipate heat from friction between the calipers and rotors. As they wear out over time, they lose their ability to do this properly, resulting in metal-on-metal contact between the two parts that creates a loud knocking sound.

Other possible causes for this noise include warped rotors or debris stuck within the rotor itself. If your vehicle is making this kind of noise when braking, it’s important to have it checked by an experienced mechanic as soon as possible in order to prevent further damage or unnecessary repair costs down the road.

Is It Safe to Drive the Car If It is Making a Knocking Noise When I Brake

No, it is not safe to drive a car that makes a knocking noise when you brake. This could be an indication of worn brake pads, which can greatly reduce the effectiveness of your brakes and increase stopping distance. It can also mean that there are worn or loose parts in your suspension system, potentially leading to excessive wear on your tires and braking components.

If you notice a knocking sound while braking, have it checked out by a qualified mechanic as soon as possible.

How Can I Diagnose What is Causing the Knocking Noise

To diagnose what is causing a knocking noise, you should first inspect the vehicle for any visible signs of damage. Check the engine area and suspension system to see if any components are loose or worn out. Then, listen closely to where exactly the sound is coming from and try to identify which component it may be originating from.

If possible, take a look at your service manual or online resources to help narrow down potential causes of the knocking noise. Once you have identified some potential culprits, then you can begin troubleshooting and replacing necessary parts as needed until the cause of the knocking noise has been resolved.

Are There Any Simple Solutions for This Problem

When it comes to finding simple solutions for a problem, the best approach is to start by understanding the root cause of the issue. By examining why and how the problem arose in the first place, you can often find ways to prevent similar issues from occurring again in the future. Additionally, brainstorming potential solutions with a team or group can also help identify low-cost yet effective solutions that are both practical and achievable.

Remember that there may not be one single solution to any given problem – instead, a combination of smaller, simpler changes can often lead to bigger results over time.

How Much Will It Cost to Repair the Issue Causing the Knocking Noise When Braking

The cost to repair the issue causing a knocking noise when braking is dependent on several factors, such as the type of car you have and where it was purchased from. Generally speaking, repairs can range anywhere from $100-$500 plus labor costs which can vary depending on how long it takes to diagnose and fix the problem. If the part needs replacing then additional costs may be incurred for parts, including brake pads or rotors.

It’s important to get an accurate diagnosis before proceeding with any repairs in order to ensure that all issues are addressed properly and no further damage is caused.


This blog post has helped to identify the possible cause of a car making a knocking noise when braking, which is most likely due to worn brake pads. While this can be concerning, it also indicates that with proper maintenance and timely repairs, drivers can avoid expensive replacements down the line. As such, it’s important for drivers to stay on top of their vehicle’s condition in order to ensure that any potential problems are addressed quickly and properly before they become more serious issues.


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