A grinding noise that started right after a brake job means something went wrong during the install - or something was overlooked. The good news: a shop that did the work should fix it under warranty, and the causes are usually fast to identify. Here are the most common reasons brand-new brakes grind.
Tell us your year/make/model and what you’re experiencing. Our AI gives you the most likely cause for free in under 30 seconds.
Start Free Diagnosis →No login. No scanner needed.
Many pad sets come with thin metal shims that go between pad and caliper piston. If the installer skipped them, the pad rocks slightly, creating a metallic grind. Parts: included with pads. Labor: $40 - $100 to redo. Difficulty: Easy DIY/warranty.
Get a Free AI Diagnosis →The little metal tab designed to make noise when pads wear thin can get bent during install and start touching the rotor immediately. Often makes a chirping or grinding sound. Bend back or replace. Parts: $0. Labor: $30 - $80. Difficulty: Easy DIY.
Get a Free AI Diagnosis →A small rock, piece of rust, or even shop towel fiber can get trapped during install. Pulling the wheel and clearing it is a 15-minute fix. Parts: $0. Labor: $30 - $80. Difficulty: Easy DIY.
Get a Free AI Diagnosis →When removing the wheel or caliper, the thin dust shield can get bent against the rotor. Now it grinds with every rotation. Bend back or trim. Parts: $0. Labor: $30 - $80. Difficulty: Easy DIY.
Get a Free AI Diagnosis →Pads installed with the wear indicator on the wrong side, or the wrong pad set for your car, can rub on the caliper or have improper contact. Confirm correct part number for VIN. Parts: $40 - $150. Labor: $120 - $250. Difficulty: Medium DIY/warranty.
Get a Free AI Diagnosis →Reusing a rotor that had deep grooves or scoring means new pads ride into those grooves immediately. The grind starts on day one. Resurface or replace the rotor. Parts: $60 - $200. Labor: $100 - $200. Difficulty: Shop.
Get a Free AI Diagnosis →Describe what you’re experiencing and our AI gives you the most likely cause for your year/make/model - free.
Get Free DiagnosisNo login. No scanner needed. Takes about 30 seconds.
A faint grinding or scraping on the first 5 - 20 stops can be normal as new pads bed into rotors. A loud grinding from day one is not normal and means something was missed.
Yes - any reputable shop warranties their work for at least 12 months. Bring it back and they should diagnose and re-do at no charge.
Light scraping during the first 10 - 20 stops as pads transfer material to the rotor is OK. A consistent metallic grind on every stop is not - that means a hardware or install issue.
Yes. Reusing a rotor with deep grooves or scoring means the new pad immediately contacts those grooves on every revolution. Resurface or replace.
Either gently bend the metal tab away from the rotor or replace the pad with one that has a fresh indicator. A new pad set is cheap insurance.
If it's consistent and obvious, call the shop the same day. The longer you drive on bad new brakes, the more likely the rotors get damaged and need replacement again.