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Old 06-12-2007, 12:38 AM   #1
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Default New Brakes Grinding

Hey everyone,

I am, of course by the post count new to the forum as I have just within the last month bought a white 2000 Bonnie with 41,000 miles on it. It is as loaded as you could get it with leather, the nice sound system, auto climate control, the alloy wheels and a lot of other features that I have grown attached to. I have been reading the posts on this site for a little over a month and have already cleared my headlight corners and tinted the windows. Looking forward to other improvements including dual exhaust. My other play toy is a 1987 Oldsmobile Cutlass 442, black with T-tops which has graduated upon purchasing the Bonneville to my garage queen and I can now drop that gas guzzling 403 in.

Anyway with introductions dispensed with I have a problem that I think I might have the answer but wanted a little advice from the experts here. I recently (two weeks ago) replaced the front pads and rotors with the good Bendix rotors and a set of ceramic rotors (I think the brand is Brake Best). Everything was right in the world until late last week when I noticed a light grinding noise and feeling when stopping. Both the noise and feel really are not noticable until under 10 MPH and then it rears its ugly head. I thought I did everything by book, bought the high quality parts, and I am now having these problems. I am thinking it is the pads, maybe I should have gotten the Raybestos ceramics. What do you all think? Sorry for the long post and great to be in the Bonneville community.
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Old 06-12-2007, 08:46 AM   #2
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Any pad called "brake best" or "best brake" is probably 99% garbage and 1% scrap metal.

Have the store order you a set of Bendix or Raybestos ceramic pads.
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Old 07-21-2007, 01:35 PM   #3
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I did the same thing on my 02 SE. I bought brand new rotors with a 5 year warranty and premium Bosch ceramic pads. Everything was fine until about 2 months of use the pads began grinding something awful! Everytime I appplied the brakes I could picture sever damage being done to the rotors. I pulled them off a couple of times to clean them thinking I had debris trapped in between the pads and rotors but the problem persisted, I also noticed that the pads were very rough and they would turn my wheels black with dust. I got fed up and replaced them with organic OEM pads. I turn the rotore becaus they didn't need it. I have not had any problems what so ever since then. That was about 40K miles ago.

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Old 07-21-2007, 05:33 PM   #4
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Some of the flat ceramic pads can become noisy after a time as the leading edge gets "sharp". Not exactly an accurate description, but sort of the idea. The quieter pads will have a beveled edge to help eliminate that. You can try beveling the edge yourself a bit with a file, and see if that quiets things down. Do just the edge and be careful not to damage the rest of the pad. The better ones will also have a slit from top to bottom about in the middle of the pad. Do not do anything with that.
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