Driving a car sounds all fun until you are in the driver’s seat. You have to take care of so many parameters, including the most accurate brake control. But when brakes are squeaky, stiff and not performing right when you have pressed it can cause frustration- and sometimes accidents!
So if you are recently figuring out why brakes squeak when stopping slowly this article would be a solution to all your queries. Typically, there are more than single reasons why brakes squeak when stopping slowly, so let’s check them one by one.
Why Brakes Squeak When Stopping Slow- reasons unveiled
If the car brakes are not smooth and letting out the odd squeaky sound, there can be the following reasons. Check out which reasons match your car brake and get it fixed before it is too late!
The high-pitched noise, grinding or squealing and off odd-sounding noise from the brake is not a good sign. If your car or vehicle has been subjected to moist conditions the brakes will get the impact.
For example, if you have parked the car in rain, snow, or humidity overnight, the moisture will make place in the brakes as a thin layer. This layer will then become rust due to moisture in the air and will damage the rotor as it should.
So, try to park your car away from moisture, usually indoors. The little layer of rust will generally go away with normal driving as the heat builds up.
Metallic brake pads
In car brakes, there are three types namely, organic, semi-metallic, or ceramic brakes. The type of brake pad material tells the reason why it’s squeaking. So if your car has been installed with metallic brake pads.
Generally the (common type), semi-metallic brake pads consist of about 30% and 65% metallic elements like iron, steel, graphite, and copper.
So when the pad rubs with the rotor, they get abrasive and let out the squealing or grinding sounds. The sound will eventually go away after the pad wears down past that layer.
Organic pads are cheap and offer less quality and longevity along with attracting dust.
On the other hand, the ceramic brake pads are best for quality and performance but expensive. Usually they are quietest however with time you should also replace them, as nothing lasts forever.
No lubrication on the drum brakes
Drum brakes demand lubrication. And if there is no lube within the drum brakes the squealing sound will certainly make its way to your ears.
So if your vehicle has drum brakes, the contact point between the shoes and the drum must be in lack of lubrication. Therefore, the shoes will run against the backing plate which will let out high-pitch sound.
To avoid this, you should use the brake grease to the backing plate where the piston meets the shoes.
How you press the brake paddle
If you are an aggressive driver and press the brakes hard and fast during high speed, it will cause more heat in little time. Certainly, that comes with some impact and in this case, it will cause the hard glaze on the brake pads.
The glaze on the car brake pads will prevent its friction to develop needed for stopping the car. As a result, the brakes squeak like crazy even when stopping the car slowly.
Dust debris, and junk
When you are stopping the car slowly, still the brakes are squeaking, there can be dust and accumulated debris. It’s a very common issue especially if you don’t keep the car clean very often. Dust or debris between the pads and rotors can be the main reason why you have problems with brakes.
Worn out brake pads
If you haven’t replaced the car brake pads for ages, it certainly gets worn out giving you enough reason why brakes are squeaking. When brake pads lose the lubrication they start to wear sooner then you may have expected due to too much friction.
How to stop brakes from squeaking
Squeaking and screeching car brakes not only sounds annoying but also damages the vehicle. If you do not readily repair it can also cause car brakes failure. So in this section, I shall tell you how to stop brakes from squeaking without putting thousands of dollars.
But before you dive deeper, the braces may squeak as a result of a thin layer of rust or corrosion. If you had parked your car in a snowy or moist area, the overnight time is enough to cause the brakes a bit squeaky.
If that is the reason, it will automatically go away after a few applications of brake paddle. When the engine starts and you drive the car, the heat will remove the rust if it’s not too much.
So you won’t need to replace the brakes in that case. However, if that is not the reason, here is how you should stop brakes from squeaking.
Add the set of shims
Another tip is to put the set of shims to the brake. It comes as the instant and helpful solution for the squeaking brakes of the vehicle. Use the brake pad shims on the brake pads and make sure it works seamlessly afterwards. The brake pad shims fill up the space that was the reason for pushing the brake pads around.
Add lubrication on the brakes pads
When you hear an old and high-pitched sound from any machinery, usually, adding lubrication solves it. However, sometimes the problem can be different.
But in car brakes if you apply grease or some other specified lubricated solution to it, it will instantly become smooth and quiet. All you need to do is to remove the brake pads from the calipers and evenly apply the lube or brake grease to the back side of the brake pad.
Do not apply the grease/lubrication onto the brake rotors, brake pad friction exterior. It will impact the performance in an adverse manner.
Get the rotors and pads replaced
If none of the above solutions is working, you should now replace the rotors and pads of the car brakes. Over the course of time, the brakes of the car get damaged or wear out. So it put the damage on the pads and rotors majorly. Therefore, you should check and if you find any damage this time to replace them.
When the brake caliper and rotor touch, it produces the squeaking sound. Therefore, replacing them is a wise solution for added performance and quiet brake applications. Sometimes, when the rotors of the brake slightly bend it also lets out the squeaking sound.
Check the width of the brake pads at the backside of the wheel, if it’s less than 3/8” of friction it’s time to replace the brake pads. The lesser friction on the brake pad means the rotors cover has lines or budget exterior causing squeaking.
How to fix squeaky brakes
Whatever the reason for squeaking brakes, you need to first find out if you keep your car well-maintained or not. Usually, the brakes squeak due to worn- out brake pads or lack of lubrication.
You can easily fix the squeaking brakes from the above mentioned solutions. However, there are other solutions that dedicatedly target the fixing of squeaky car brakes.
Sometimes, when a problem has multiple solutions it becomes quite easy to solve it. If you don’t want to use the shims for fixing squeaky car brakes, you can opt for a sticky solution.
This especially helps for larger squeaks from the brakes!
You need to join the brake pad brake plate to the piston/caliper housing. It adds to its mass for which cripples the squeaks of car brakes.
For that you should use CRC brake quiet. It is an elastomeric multi-polymer compound for the safety and protection of important brake parts/components. It also fixes the brake noises and adds longevity.
How to stop new brakes from squeaking?
If you have installed a new brake in the car and they are squeaking, that is not a thing to worry about. You need to add lubrication to the touch points and that’s all. This will usually go as you drive the vehicle and use the brake to get it in the working process.