If you’re experiencing loud rotor noise when driving your car, there’s a good chance that it’s due to worn or damaged rotors. This can cause the hubs and brakes on your car to squeal or make other noises.
If you are hearing a loud noise coming from your new rotors, it’s most likely due to the fact that they are still in the process of being machined and/or processed.
This type of sound is usually heard when the rotor has just been installed or when it’s first starting to wear down. Over time this noise will dissipate as the rotor wears down more gradually.
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Why My New Rotors Are Making Noise -6 Common Causes
It’s not unusual for brake rotor noise to occur when you first start your car. The rotors are usually cold and have a lot of friction as they spin. This can cause them to make noise when they stop.
If the brakes feel squirrely or grab too hard, it may be due to worn or warped rotors.
You can check this by pulling off one of the front wheels and spinning the rotor around with your hand. If it makes a high-pitched squeal, then it needs to be replaced.
The Brake Pad Material
If you’ve recently replaced your brake rotors, you may be noticing a new noise coming from your car. This sound is most likely caused by the rotor’s vibrations falling on the pads and making them make a clicking noise.
To prevent this type of noise in the future, make sure to replace your rotors regularly – even if they don’t seem to be causing any problems.
The brake pads are made of a variety of materials, and some may be more prone to making noise than others. Some common materials that can make your brakes noisy include metal, plastic, and rubber.
Mismatched Rotor Size & Caliper Type
If you have mismatched rotor size and/or type, the friction between the rotor and pad will be uneven which will cause noise. This issue can also occur if your rotors are too big or small for your calipers.
Damaged Rotors or Hardware
If your rotors are damaged in any way (e.g., rust), they’ll make lots of noise when you hit the brakes. Additionally, if there’s damage to the hardware that attaches the rotor to the hub (e.g., bolts), this will also result in excessive braking chatter and noise as well
Sticks & Stones
Brake pads are made of a variety of materials, but the most common is steel. When you hit something with your brake pedal, it causes the metal fragments to fly off of the pad and into your rotor.
Over time this can cause rust on the inside of your rotor which will then make noise as you apply pressure to the pedal.
The Weather
The type or quality of brake pad material can also be affected by weather conditions like rain and snowmelt. This runoff can contain chemicals that can damage the braking surface over time, leading to noisy rotors in turn.
Glazed or Grooved Rotors
Rotor manufacturers have begun using glaze or grooves on some types of brakes in order to improve their coefficient of friction (COF). This means that they work better when stopping at high speeds due to reduced wheel slippage during hard cornering and braking maneuvers.
How Do I Stop My New Rotors from Making Noise?
If you’ve just bought a new set of rotors and they’re making noise when you brake, there’s likely a simple solution.
Check to see if the brakes are properly adjusted, make sure the pads are in good condition, and that the rotor is seated correctly on the hub.
If all those things check out, your only other option may be to replace the rotors.
Sealed the Rotors
When your new rotors are installed, it is important to make sure that they are properly sealed by gluing the rotor hub onto the brake caliper.
If this step is not done correctly, the rotors will likely make noise when you apply pressure to them.
Have Your Rotor Calibrated
If your car has been serviced recently or has undergone any major repairs, there’s a good chance that your rotor was not properly adjusted when replaced or calibrated during those services.
A misaligned rotor will cause excessive wear and tear on both its outer and inner surfaces over time, leading to increased noises and vibrations from the brake system in general.
Installed Brake Pads Correctly
If your brakes aren’t installed correctly, they may not be able to handle the increased friction from the new rotors. This can lead to a lot of noise and vibration when you try to stop in traffic or use your brakes on a hill. So, make sure you install the brake pads correctly.
Fix the Too Tight or Loose Bolts
If your bolts are too tight or loose, they may vibrate and create noise when you apply pressure to the brake pads or rotor assembly. In addition, these vibrations could cause damage over time so it’s important to take care while installing your new brakes.
Change Faulty Wheel Bearings
If wheel bearings are faulty, they may start making noises after applying pressure to your braking system due to worn-out seals or cracked shafts within the bearing housings. To fix it change the wheel bearings.
FAQs
Why Are My New Rotors Grinding?
There are a few potential causes of your new rotors grinding. One possibility is that the rotors are not seated tightly against the hub.
Over time, the rotors could start to move around in the hub, which would cause them to grind.
Why Are My Brakes Still Make Noise After I Changed Them?
One possible reason your brakes are still making noise after you replaced them is that the new pads or discs may not have seated properly.
To ensure that your new brakes are properly seated, you may need to perform a brake pad or disc check.
Why Are My Brakes Still Grinding After Replacing Pads and Rotors?
There are a few reasons why your brakes might be still grinding after replacing pads and rotors.
One possibility is that the brake pads are still rubbing against the rotor because the rotor is not seated completely on the pads.
Another possibility is that the brake pads are not grabbing the rotor properly, leading to excessive grinding.
Can You Replace Brake Pads Without Rotors?
You can replace brake pads without rotors in some cases, but it depends on the condition of your brake rotors. If they are badly worn or damaged, you’ll need to replace them with new ones.
Conclusion
If you’re hearing noises coming from your new rotors, it’s likely because they’re not yet adjusted to the car’s weight and size. Over time, the rotors will start to make noise as they wear down.
To prevent this from happening, have your mechanic adjust them shortly after purchase.
There could be a number of reasons why your new rotors are making noise. It is important to rule out all other potential causes before concluding that the noise is caused by the rotors.
There are many possible causes of rotor noise, and it may take some time to determine which one is causing the issue.
In most cases, once you have ruled out all other potential sources of the problem, you can begin working on solving it.