Car brakes ( parking brakes or power brakes) appear as a safety device for vehicle drivers in traffic; sometimes, this part emits a rather annoying squeaking, loud grinding sound.
This is also a sign that you need to check your brakes or brake discs.
Our article will answer why there is noise when pressing brake pedal. Is it dangerous? And some simple brake inspections.
Causes Of Noise When Pressing Brake Pedal?
“Why does my brake pedal make noise” is one of car owners’ most common brake mechanism questions.
There are many causes of brake pedal making noise when released; we will give you 6 main causes of squeaky brakes as follows:
Brake Pads Are Worn
If the brake pads have been used long, the rear brakes’ metal surface will gradually wear out and affect vacuum pressure. This causes the metals to touch each other and creates a shrill noise.
In addition, the rotor can also rub against the brake calipers and scratch the disc brakes.
So you need to replace the worn brake pad, or it will break. The rear brakes and the brake calipers will wear each other, creating trails and damage.
Poor-Quality Brake Pads
Poor-quality and cheap brake pads often have metal shards, which will rub and scrape on the surface of the rotor, causing common brake noises.
Therefore, if you plan to use brake grinding or replace brake pads with new ones, don’t choose cheap brake pads.
Solid Object Stuck Between Rotor And Brake Caliper
Sometimes there will be small rocks, a piece of foam, or some solid objects between the rotor and the brake calipers when the vehicle is on the road.
Those solid objects will do brake grinding, making a noisy brake whether you are braking.
Pad Retaining Clip Is Broken
A broken pad retaining clip will allow brake system parts to touch, such as the rotor. When the metal tab touches each other, noisy brakes are generated from the brake disc system.
Not Using The Car Often
Another reason that causes brakes to make sound when releasing is the infrequent use of cars.
If you leave the car in the garage for a week, not using it in bad weather will cause the rotor to rust and corrode. In a situation like this, the rust will spread to other parts damaging them.
Brake Pads Lack Lubrication
Brake pads will make a noise when braking if brake pad contact points lack lubrication ( grease or brake fluid).
This is rarely the case, but it can happen. The mechanic will usually grease the brake pads for you when performing repairs.
Is The Brake Makes Noise When Pressed Dangerously?
Yes, the brake makes noise when released can lead to some dangerous conditions. Never ignore the noises when braking because this can affect the user’s safety.
The vehicle must generate heat energy through friction when the brake pedal is pressed. As a result, the brake pads will wear out over time, damaging the rotor and brake calipers.
Problematic brakes can lead to severe accidents. So ignoring the noise you make when braking only makes matters worse.
How To Handle Brake Pedal Makes Noise When Pressed At Home?
Check Brake Parts
You must check the brake system components by lifting the vehicle up and removing the wheel where the noise is coming from.
Next, use your hands to shake parts such as brake pads, cylinder bodies, disc brakes, master cylinders, vacuum hoses, brake shoes, and other brake components.
If there are loose parts, all you have to do is tighten them. These parts need to be fitted tightly, not visible leak.
Otherwise, they will vibrate and make noise when the vehicle is moving.
Replace The Brake Pad Retaining Clip
If the brake pad retaining clip that holds the brake pads are worn, loose, damaged, or lost, you should replace the new clip to keep the brake booster diaphragm in place on the brake shackles.
You need to think about using foam silencer humidification as a booster diaphragm.
The paste booster diaphragm must be applied to the rear of the brake pads.
Once applied, this will provide a layer of retainers for the moving components, reducing vibration and, as a result, eliminating noise.
Using Grease (Liqui Moly Bremsen-Anti-Quiesch-Paste)
Apply a thin layer of grease to the back of the brake pads, the most popular brake liquid grease on the market is liqui moly bremsen-anti-quiesch-paste.
This grease will absorb vibrations and reduce the car brake sound when the brakes are applied.
After applying grease to the back of the brake, you should leave it for 2-3 hours or overnight so that the grease can dry, does not leak air, and become stronger.
As the grease dries, it will turn darker and grip better. When you want to replace or remove this grease, use a brake pad cleaning solution.
Check Brake Pads And Replace Them If They Are Worn
Worn brake pads are one of the most prevalent causes of brake pedals making noise. In addition, we have a car brake wear indicator that will notify us if the brakes need to be replaced.
When replacing brake pads, the first thing is to find and buy a new one. Find one brake pad material that fits your vehicle and is known to be effective at reducing noise.
After you’ve decided on a pad, park the car, let it cool, and then lift it using brake drums.
Remove the worn caliper assembly and brake pads at this stage.
Grease the new brake pads before assembling them; this will reduce friction. Install the tires after replacing the caliper assembly!
Check Brake Totor
If the brake pads aren’t the issue, it might be the brake rotor.
Once the brake rotor fails, the brake booster may leap and produce a thumping sound, which might be the source of the noise you’re experiencing.
In case the rotors may still be saved, a rotor lathe can be used to smooth the surfaces. This service is likely to be available at a local auto shop.
On the other hand, when the problem is severe, it is best to replace the rotor. Especially if the metallic sound is getting louder, the problem maybe is the propellers.
Any Notes For Me When Dealing With Brake Pedal Noise?
Here are some important points to remember while dealing with brake pedal noise:
- If you want to be certain that the problem is with the brake rotor, measure its thickness during the examination. Is it too weak? So, it is a dead giveaway that has to be replaced.
- The car’s brake system should be checked in conjunction with the oil change.
- Don’t be concerned if you hear the brake pad sound in the early morning as you leave the house. Usually, applying a few brakes solves the problem.
It continues, so we continue to consider it a clue that something is wrong. Please send your vehicle to professional mechanics with a reasonable estimate price.
How Often Should Car Brakes Be Changed To Avoid Making Noise When Braking?
Knowing the right time to replace the brake will help keep it quiet from wear. Brake life will depend on various factors, such as usage and driving conditions.
It would be best if the owner of the steering wheel position replaced the brakes and wheel rims in most cases after driving about 15,000 to 100,000 miles.
Through the article – noise when pressing brake pedal, readers will see that brakes make noise when released is not simple, and it causes many brake failures for car owners.
You need to pay attention to any noise coming from the car when normal driving the vehicle to intervene and repair the brake quickly.
If you are not experienced in brake jobs, take your car to the nearest garage to have it fixed by a professional brake service without too expensive repair.