new brakes squeak while moving, but noise stops when applying breaking pressure

Had new disk brakes installed, after about 100 miles and abut two years (car does not drive in winter) heard a loud squeaking noise that occurs after driving car for about 5 minutes. When the brakes are applied the noise stops. Sometimes noise comes back when i take my foot off the brake, sometimes noise does not come back. i looked at the brake pads and there seems to be plenty of material. Also the rotters are smooth and not rusty.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hi there. First off, you have my favorite year of Corvette – the 62’ is awesome! Second, the brake squeaking issue is likely due to excessive brake dust collected in between the rotor and the pad or perhaps a wheel bearing that is starting to show early signs of normal wear and tear. It’s also possible that the pad is lightly dragging on the rotor. This can be caused by excessive brake pressure or a caliper or brake booster that is not working correctly. The best thing to do is spray off the front wheels and behind the wheel first, to knock off any excessive brake dust to see the noise goes away on it’s own. If it does not or the noise is progressively getting worse, have a professional mechanic complete a car is making a noise inspection, so they can try and replicate the noise and pinpoint it’s source, so the right repairs can be made.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

Old Brake Pads

You need to replace your brake pads if they squeak while you`re driving but no brakes are applied. The brake wear indicator, a metal clamp that fastens to the brake pads, usually comes with your brake pads when you buy them. These pads deteriorate over time, which forces them to grind against the rotors.

Brake Pad Wear

When your brakes squeal continuously as you drive along the road, but the squealing stops when you press the brake pedal, the most likely cause is the brake wear indicator touching the rotor`s surface.

Normal New Brake Squeal

Likewise, overnight condensation accumulating on the metal rotors can create surface rust that requires a few braking occurences in the morning to wipe away. These parts can make a squeaking noise when covered with surface rust. The noise should subside as you drive.

As mentioned above, ceramic or metallic pads or moisture can cause pads to squeak. This type of squeaking is usually harmless, says Popular Mechanics. But new brake pads can also squeak because of a foreign object, explains Bockman`s Auto Care. Twigs, pinecones or rocks may get stuck between the brake pad and rotor.
If you get squealing or squeaky brakes even when you`re not applying the car brakes, you could possibly have a stuck or frozen caliper. Stuck calipers in your disc brakes can happen for several reasons, from issues with the caliper slides to the caliper piston.
Brake Pad Wear Indicators Make Noise

The Fix: Found inside brake pads, the wear indicators are tabs of hardened steel that hit the rotor and cause a sound when the brake pads are low. If you hear this sound when not applying the brakes, you may need new brake pads.

WD-40 Specialist Automotive Brake and Parts Cleaner is safe to use on clutch and brake assemblies, brake discs, callipers, brake drums, brake pads and brake linings.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

new brakes squeak while moving, but noise stops when applying breaking pressure
ANSWER : Hi there. First off, you have my favorite year of Corvette – the 62’ is awesome! Second, the brake squeaking issue is likely due to excessive brake dust collected in between the rotor and the pad or perhaps a wheel bearing that is starting to show early signs of normal wear and tear. It’s also possible that the pad is lightly dragging on the rotor. This can be caused by excessive brake pressure or a caliper or brake booster that is not working correctly. The best thing to do is spray off the front wheels and behind the wheel first, to knock off any excessive brake dust to see the noise goes away on it’s own. If it does not or the noise is progressively getting worse, have a professional mechanic complete a car is making a noise inspection, so they can try and replicate the noise and pinpoint it’s source, so the right repairs can be made.

I changed my brakes and they still squeak I applied the brake stop squeak and they still squeak
ANSWER : Hi there. The leading cause of brakes squealing after replacing the pads is excessive brake dust trapped between the caliper and the rotor. Typically when brake jobs are completed, a professional mechanic will spray brake cleaner liberally on the calipers and rotor to remove any brake dust that has embedded in between the two components. If this is not completed, the extra brake dust will be trapped between the fresh pad and the rotor. When heated, it can create an annoying squeaking noise. The best way to resolve this issue is to remove the tires, place a drip pan under the hub and spray brake cleaner along the caliper and the rotor. Let it dry for a few minutes then reinstall the tire, torque it down correctly and test the brakes. If this does not resolve your problem you might want to have one of our professional mobile mechanics come to your location and complete a brake system inspection.

New front pads & rotors (2mths) and hear a grinding noise when coming to a slow gradual stop. What could be causing this?
ANSWER : Hello, thank you for writing in. The last technicians that worked on your vehicle are not wrong. There are certain types of brake pads that will make a squealing noise when the brakes are applied. These are typically made from a metal composite material. You can always research the brand they put on and find out more about the brake pads. This would give you a good idea of what you should reasonably expect. Are the brakes exhibiting any other types of symptoms? If there is any sponginess in the pedal, shaking or vibrating, hard stops, or other symptoms then there may be more cause for concern. In situations like these, if you are expecting to drive the vehicle a longer distance in the near future, it is recommended that you get a second opinion. Our technicians can dispatch to your home or office.

I hear chirping from under the hood most prevalent while braking. The noise stops when the car is no longer moving.
ANSWER : Hello there. Thanks for the detailed description on your inquiry – it really helps us out. Based on what you have indicated, my first assumption would be that you have a loose serpentine / drive belt or a pulley that is showing early signs of wearing out. When the noise happens during breaking and normal operation, it tends to be caused by a belt that is frayed or loose. As you accelerate, the belt will tighten naturally; which is why the sound might slow down during idle. If the belt and pulley’s have not been replaced within 40,000 miles or so, it’s probably due to be completed. Since it’s possible that this could be from a different source, it’s also a good idea to have a professional mechanic complete a car is making a noise inspection to verify the source of this noise before making repairs.

After new brake pads & rotors, SUV has a grinding noise
ANSWER : Hello. It sounds like the brake calipers may be locking up and causing the grinding noise that you are hearing. I would check to see if the caliper hose is twisted. If it is, this may cause the brake fade that you are experiencing. It is also possible that the master cylinder is starting to fail which could also cause the problems you are having. I would suggest that you have a certified technician, like one from YourMechanic, complete an inspection of your brakes and determine if your master cylinder needs to be replaced, or if the brake calipers need to be replaced.

ABS brakes lock up
ANSWER : It sounds like the traction control system and the ABS system may have been activated as a result of the bumpy road you were driving on. Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car’s ECU. When the ECU senses an abnormal speed given specific conditions, it engages the ABS or traction control as needed to control the vehicle properly and safely. Occasionally, these sensors can fail or become faulty working intermittently sending inaccurate signals to the ECU. When this happens, you may experience the symptoms you have described. The ABS or traction control system may be inadvertently activated by these false or inaccurate signals. I would suggest having a professional from Your Mechanic come to your home to diagnose your ABS and traction control system.

Grinding noise while braking – 2006 Porsche Cayenne
ANSWER : Okay, so with brakes, the concept is fairly simple and hasn’t changed much over the years. You have a rotating disk and it is being squeezed on both sides by a pair of pads. If you are hearing a grinding noise, then something other than the brake pad surface is touching that rotor. Your vehicle type is a huge red flag (Being a higher end vehicle). I have a family member with an Audi and she took it to a non-Audi related place to have her brakes done. They used the wrong pads or did not follow a proper procedure and it caused her a lot of headaches. If you did not take your Cayenne to a Porsche certified technician, they may have done something similar with your vehicle. Many times some of these less reputable shops use the cheapest parts they can find. Please find a Porsche certified technician to recheck the work if the person who performed the work the first time was not. If they were a reputable shop, you should be able to bring the vehicle back and have it redone at no charge.

I got gas the day after my car stopped moving after applying the brake at a stop sign. Now it wont drive 2008 Chevy Aveo
ANSWER : Hi – first thing to check is for proper transmission fluid level. If fluid level is correct, this may be a transmission failure (forward clutches). I would recommend a transmission inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.