metal grinding noise after changing back brakes

2005 PONTIAC GRAND PRIX
150,000 MILES • 3.8L • 6 CYL • FWD • AUTOMATIC
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SHAN21
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  • 1 POST
Changed back brakes. hear grinding sound when starting to drive.
Aug 28, 2017 at 8:27 AM
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STEVE W.
  • ✓ASE Certified Mechanic
  • 15,200 POSTS
  • ASE Certified Mechanic
Did you change the pads and rotors? How about the parking brake shoe? Those have a bad habit of rusting and falling apart under the rotor.
Either way you will want to look them over and see if there is something assembled wrong or maybe the fronts are also worn.
Aug 28, 2017 at 8:46 AM
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HARRY P
  • ✓ASE Certified Mechanic
  • 2,292 POSTS
  • ASE Certified Mechanic
Also if the caliper bracket bolts and slide pins aren't perfectly tight enough then the caliper and/or bracket will rattle around. It could sound like a grinding sound if it starts touching the rotor. Seen it happen.
Aug 28, 2017 at 2:47 PM
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