Pontiac G6 Forum banner

Grinding noise with new brakes

5451 Views 2 Replies 3 Participants Last post by  Adrien
Got front brakes done last weekend. When I went to test the car out, I noticed a loud hum when braking a little more aggressively. The mechanic said that I should give it about 50-70 km to break-in. Now, about 5 days and 500km later I'm still getting this noise. I thought ceramics were supposed to be quieter than metal. Should I give it more time or is there a definite problem and I need to go back to the mechanic asap?

PS Driving an '05 G6 base, 94000 km on it.
1 - 3 of 3 Posts
grinding noise is never good.. id take it back and at least have them look at it.
Be sure to get the mounting hardware checked out, specifically the caliper bolts/pins. If these are worn they will cause the calipers to twist during braking. One sign that this is happening is the pads are wearing on a taper (the front edge of the pad is thicker than the rear edge or vice versa). A new brake hardware kit will usually repair this, but the caliper itself may also have to be replaced.
1 - 3 of 3 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.