How to Tell If Bad Rotors Make Noise While Driving

Do your brake pads make a noisy squeak or thump when you’re driving? Or do you see blue marks on the rotors? If so, it might be time to have them checked by a mechanic. Thankfully, replacing brake rotors is a relatively easy procedure that almost anyone can do. Regardless of your skill level, you can expect some noise as your brake pads vibrate against the warped rotor.

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There are many reasons why your rotors might be squeaking while driving. Sometimes, this noise is caused by foreign objects or glazed or grooved rotors. The rotors will be glazed or grooved due to continual wear from the brake pads. It can also be caused by debris that collects on the wheel. It is common to hear a squeaking noise while driving, especially in rural areas.

Sometimes, the noise is simply caused by human error. The mechanic might have bent a rotor’s backing plate so that it’s touching the rotor. In other cases, a pebble or piece of rust may be the culprit. If you notice this noise while driving, it’s important to take your car to the mechanic who did the work. Leaving the rotors unchanged may save you money, but quality mechanics will put the customer’s satisfaction first.


A sound your car is making while driving could be a sign of bad rotors. You may hear a scraping noise when braking, particularly when turning a corner. These sounds can be caused by dirt roads, pebbles from freshly repaired potholes, or bent backing plates. Fortunately, the noise is easily preventable by keeping your car indoors. Read on to learn how to tell if your rotors are making noise.

If your brakes are making noise while you drive, it may be a sign that the rotors are warped, bent, or uneven. Pulsation is felt primarily in the brake pedal, so if you only hear the noise while braking, then the noise is coming from your rotors. If you are hearing pulsation when braking, then your rotors may be nearing runout.


When you hear a scraping sound when you brake, it may be an indication of bad rotors. This sound may be caused by the rotor being warped, or it may also be the result of corrosion or buildup of brake pad material. Either way, you should get your car checked out as soon as possible. This issue is often a simple one to solve, so make sure to keep your car indoors.

There are a few different causes of brake noise, including low fluid levels, uneven or warped rotors, or air in the brake lines. Sometimes, bigger problems in the car’s hydraulic system cause this noise. While these problems do not directly affect the rotors, they will eventually wear them out. You can fix the noise and keep your car running for a longer time by replacing the rotor.

blue marks

If you notice blue marks on your brake rotors, it’s time to visit a mechanic. Not only will blue marks cause noise, but they may also be the sign of a weakened braking system. If you hear squeaking or grinding noises while driving, rotors are most likely to be bad. The following are some signs you should look for in your brakes.

Loud bangs – The sounds of banging brakes are a warning sign that a rotor is bad. The noise will likely make your car lose brake function and lead to an accident. The marks that appear on the rotor are blue, a sign of heat. Excessive heat is one of the leading causes of blue rotors. Excessive heat from driving is another warning sign. Drivers who drive on steep slopes are likely to experience frequent riding of their brakes.


There are a couple of reasons why your braking system may make a loud noise while driving. First, brake rotors tend to rust when you park your car for a week or more. Over time, this rust weakens the rotors, making them noisy when you first try to start your car after it has been parked. Second, rusted rotors also lead to increased pad wear.

Another reason your rotors may make a noise is that they are warped. Brake rotors have to withstand a great deal of heat when you brake. This can cause the steering wheel to shake. A warped rotor can also cause corrosion. Ultimately, this will make your braking system noisy and prone to failure. If you’re experiencing this noise, it’s time to visit a mechanic who specializes in automotive repair.

rotor wear indicator

If you hear a rubbing noise while driving, your brake pads are probably worn. This noise is caused by the backing plate rubbing against the rotor and can be removed by replacing the brake pads. The next thing you should check is whether your brake pads have a wear indicator. If not, you should replace them as soon as possible. If not, the noise could be a sign of rust or a bent wheel rim.

The noise can be from the rotors themselves or from the caliper. A noise coming from the brakes can be caused by a rusted rotor. A mechanic might have bent or distorted the rotor backing plate, which can cause it to make noises while driving. Another possible cause is debris, such as a pebble or rust, hitting the rotor while driving. If the noise persists, it is best to visit the mechanic who did the work on your vehicle.