There are several possibilities. The rotors may be poor, in which case there is a sympathetic vibration at certain frequencies (when coming to a stop) that makes them noisy. The pads may be poor in quality, although I think that the ones you installed are okay if they are what you say they are. The pads and or rotors may be glazed from very high temperatures due to hard braking. Or, the technician may not have cleaned the rotors well after machining them and little pieces of metal have been embedded in the friction material. Once this noise starts, it's unlikely that it's going to go away. You can attempt a stop squeal service, one that you apply to the pads with heat, I recommend the BG chemicals, as a first step. If this does not work, which is likely, then you will have to service the brakes again and it will either need new rotors, pads, or both as well as a quality installation. I recommend asking the next technician that services them if he/she is ASE certified in Brakes. If not, don't argue, just walk away.
2007-03-24 08:21:27
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answer #1
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answered by Mtech 3
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not likely because of cheap rotors. you must understand that a sqeakis caused by high pitch vibratons and can most of the time be resolved by applying a thin coat of silicone grease to the back of the pads(between the pads and the caliper) to dampen the vibrations. also you maywant to try driving IN A SAFE AREA pretty fast in reverse and slamming on the brakes a couply of times thatwill break loose some of the brake dust packed into the pad from continuous foward stops and give you a temporary fix.
2007-03-24 08:24:41
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answer #2
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answered by Anonymous
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the whistle sound is caused by the brake pads vibrating on the rotors. to stop this it is recommended to use a product called 'disc brake quiet' on the back of the pads. you can do it your self if you know how to remove the brake pads.
2007-03-24 08:40:14
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answer #3
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answered by dolls7949 2
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Under normal driving the pads should last around 40,000 miles. Was the calipers checked, to see that their not sticking.. Jack up a wheel and turn it by hand and listen to see if you hear it dragging. Other than this the pads that came on the car was defective. I had one set go bad in 3,000 miles, on a brand new Pontiac..Ceramic pads will last longer, but is harder on the rooters. I've always used metallic pads, and had good service out of them, plus they cost less than ceramic. I had a truck that I replaced the breaks on with 18,000 miles on them I bought the truck used with 16,500 miles on it. Found out the owner before me pulled a heavy goose neck trailer the who time he owned the truck,.
2016-03-29 02:23:50
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answer #4
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answered by Anonymous
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It could be cheap rotors or is still breaking in the new pads this will take about 500 miles to do yhe job but if it persists take the car back and get the mecanic to take anoyher look. good luck
2007-03-24 08:18:50
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answer #5
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answered by Anonymous
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the brembo blank rotors are good rotors.
most likely the mechanich did not install the
plates properly or did not put enough
anti sqeak compound on the pads
2007-03-24 08:20:29
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answer #6
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answered by jeff h 2
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you need to have them resuface again they made had the rotors cut at to fast of speed and not a real good finish on them which will cause a whistle noise and those rotors are aftermarket
2007-03-24 08:18:50
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answer #7
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answered by Anonymous
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What K&K said make sure there is silicone grease BEHIND the brake pads. They will vibrate against the caliper making noise like that. If you do it yourself you can buy a tube silicone grease for under $10.00
2007-03-24 08:40:52
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answer #8
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answered by InfS 2
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Uneven ware is the caliper hanging up and not retracting like it should.Not sure on the whistle noise.
2007-03-24 08:25:46
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answer #9
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answered by Anonymous
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assuming everything is right it could be the low pad sensor its a piece of metal tang that suppose to rub and make noise before your pads completely wear out it maybe wasn't adjusted right
2007-03-24 11:38:05
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answer #10
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answered by oldmanarnie 4
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