I Installed New Brake Pads And Had The Front Rotors Resurfaced But
Posted in Brake Discs & Pads | Asked on Sep 3, 2010
On my 01 nissan maxima i had the mechanic put new OEM japanese pads and had the rotors resurfaced. the rotors are brembo’s blank not sure if they are OEM. when i drive slow and aproach to a stop sign i can hear the whistle sound that comes from front brakes. its not too loud as yet but its there and develops with soft braking. i checked rotors but cant realy tell if they are wearing out unevenly. what can cause this whistle sound even though my brakes are new. could it be cuz of cheap rotors?
There are 10 Answers
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
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
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
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.
Sometimes new brakes squeal until they brake in, or there could be grease or something on your rotors.
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.
Uneven ware is the caliper hanging up and not retracting like it should.Not sure on the whistle noise.
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.
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
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