Updated at: 27-07-2023 - By: micdot

Breaks are a need in every vehicle. In the event that it malfunctions, it might put countless lives in danger. This is why even a minor squeak from the brakes might be a cause for concern. When the problem is with the brakes, it is understandable that even the tiniest noise is important. So, the question is:
It’s possible that my brakes aren’t working properly. The rattling of the brake pads in the brackets is the most common cause of a squealing noise when you apply the brakes. It’s not a big deal because the brakes will still function. The greatest thing to do is to mend it. As a result, you’ll need to invest in a specialized piece of equipment.

Braking noise is a sign that your car’s braking system is malfunctioning. Even if the problem is minor, you should still have it rectified so that you can avoid the dangers that come from a malfunctioning brake. You’ll find an in-depth explanation of the likely origin of the knocking sounds you hear when braking in this post. This will give you an idea of what to look for if you ever hear a squeaking sound when you step on the brake pedal. Is there anything else we need to know before we get started?

Why Is My Car Making a Knocking Noise When Braking?

It’s very likely that your car’s brakes are making a rattling noise when you’re applying the brakes. As soon as you step on the brakes, you can usually hear the sound of a knocking sound. However, as soon as you do, you’ll hear the unnerving pounding noise. Brake pad noise or squealing brakes can be caused by a variety of factors, and the first step is to make sure you have the correct parts for your car. It’s easy to buy the wrong brake pads because they all look the same.

Due to severe rattling, it is possible to get stuck in the caliper with the brake pads because of the small components. Knocking noises from rattled brake pads can also cause the pads to skew laterally and jam in the caliper, damaging the backing plates and causing serious damage to the friction material. Another option is to inspect the brake system on the driver’s side wheel. Check to see if the caliper or rotor has been damaged. It is possible that the brakes are faulty if the noise occurs just when braking. A loose suspension component or gearbox problem could be at blame if the noise persists.

Should I Be Worried When My Car Makes a Knocking Noise When Braking?

Knocking noises are not something to be concerned about when they occur for the first time when you step on the brake pedal. The only way to tell whether you’re having a problem with your brakes is if you can still feel them kicking in and slowing you down.

Earlier, the knocking sound was most likely caused by the rattling of the brake pads in the bracket. Step on the brakes while driving over potholes to see if it’s just a squeak or if it’s more serious. This signifies that the pads are moving again if the noise is gone. Even so, if the noise persists, you’ll need to remedy it quickly, as doing so could lead to further difficulties. You should only be concerned about brake noise if you can feel the brakes kicking in and slowing down when you step on the brakes. A minor problem should nevertheless be taken care of as soon as possible to avoid it from becoming a bigger one.

How to Fix This Issue?

First, you’ll need to figure out what’s causing the car to squeal when you apply the brakes.

It’s important to remember that the sound of a knocking isn’t the problem. As a result, it’s a hint that you need to get your brakes fixed as soon as possible. In order to fix this problem, here are some of the steps you’ll need to take.

Make sure you have the correct pads for your car’s brake.

Brake pads and other equipment are an important consideration. You may hear a banging noise if you employ an incompatible brake caliper or other component of your braking system. It’s easy to buy the wrong brake pads because they all look the same. It’s dangerous to employ pieces that aren’t right or that are too few. In this case, it’s because the brake pads can get trapped and cease operating properly if they’re subjected to too much braking.

This can cause the pads to skew to one side and become stuck in the caliper, damaging the backing plates. This is a major problem. If you hear banging or rattling noises coming from your brakes, check to see if you have the right brake pads installed.

Be mindful when replacing the original parts.

Don’t forget to utilize or replace the hardware that came with the original brake pads and other parts when you replace them. Also, make sure that the replacement parts are compatible with your automobile and its brake system before purchasing them.

For example, the previous pads’ equipment normally includes stainless steel silver clips on the back of the pads, which you can use if your new set of pads does not have clamps. Some manufacturers use a black rubberized shim instead of stainless components. In order to avoid pad drag and overheating, never use both shims at the same time. You only need one shim set for brake pads.

Clean the old parts that you’ll retain.

It’s best to clean the old pieces and eliminate rust or debris if you intend to keep them in place. On the left and right sides of brake pads, anti-rattle springs are commonly seen. Consequently, it is recommended that you remove and clean your original pad set if it contains such shims.

Don’t damage the new and replacement parts.

A final thing to avoid is damaging the new parts. If you bend the shims from the new pieces, you’ll have to replace them. In addition, make sure you keep track of which way you oriented them in the new layout before putting them back in place.

Make sure the caliper slides where these end clamps or anti-rattle bands will be attached are completely cleaned when they are removed.

Clean the parts from dirt or rust.

The shims won’t fit properly if the sliding paths are clogged with dirt or rust, causing the pads to get stuck in the caliper. Noise or a knocking sound will be heard as the pads overheat the brake disc.

Do not put on a lot of lubrication.

You don’t want to put a lot of grease in a brake when you’re working on it since it can impact its performance.

These pieces of hardware must allow the pads to move freely without impacting each other in any way. The anti-rattle clamps on the pad backing plate ears can benefit from a little amount of high-temperature oil. Your pads will move more quickly as a result of the portion aiding them in their movement As a general rule of thumb, avoid lubricating the contact surface of your brake pads and apply lube sparingly.


If you hear a banging noise while braking for the first time, you don’t need to be concerned about it too much. Typically, when you step on the brake pedal, you hear a rattling noise coming from the brackets holding the brake pads.

It’s safe to state that the brakes will continue to work, so there’s nothing to worry about. Even so, you must remember that this is an issue that must be addressed as quickly as possible. Consequently, you’ll need to invest in a specific instrument to repair it.