The brake pads could be worn out
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New brakes do not grind. If you replaced the brake pads and resurfaced the rotors you may hear a bit of a sound but it is normal until the pads and rotors wear during normal driving.
The grinding could be coming from the rear brakes.
If your brakes are grinding at all, you need to inspect the brake pads. I suspect you will find your pads are worn out.
check brakes and disc on all four wheels they may be worn.
Brakes are shot or a wheel bearing is bad.
Check brake linings - maybe need replacement
sounds like your abs is kicking in so u might have a bad bearing
Sometimes it happens because of rotors. If they are old and have a lot of grooves on its surface it will cause the grinding noise. Also it might happen if brakes were not cleaned properly during the replacement.
Incorrect pad / disc combination. There are specific blends of pads that are designed for disc brakes. Some need more metallic components, and some have less. Try the recommended OEM pads for the vehicle.
only thing i know that will make brkes grind, is worn out brakesmaybe have em checked at a different mechanic
Have them inspected by a competent mechanic, he or she will advise you. However it is reasonable to assume that after such a time the brake pads will need replacing.