Need help on front brake noise. - Lexus IS Forum
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post #1 of 10 (permalink) Old 02-05-2011, 05:40 PM Thread Starter
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Need help on front brake noise.

I recently put a new brakes pads on my '08 IS350. Now the problem is everytime i step on the brakes it makes a load noise. i mean very loud! Its so loud that i don't have to press my horn to get someone's attention. my brake does it for me automatically. Is there someone who come across with this issue? What should i do?

Last edited by vonich; 02-05-2011 at 05:52 PM.
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post #2 of 10 (permalink) Old 02-06-2011, 06:34 AM
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Go back to whoever serviced the brakes.

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Last edited by Razal; 02-11-2011 at 05:49 AM.
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post #3 of 10 (permalink) Old 02-10-2011, 01:39 PM
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Quote:
Originally Posted by vonich View Post
I recently put a new brakes pads on my '08 IS350. Now the problem is everytime i step on the brakes it makes a load noise. i mean very loud! Its so loud that i don't have to press my horn to get someone's attention. my brake does it for me automatically. Is there someone who come across with this issue? What should i do?
Did you try bedding them in,...were all shims and anti rattle clips replaced? Were the rotors replaced or just pads? Was everything cleaned up before installation?
Do a Google search on bedding brake pads,...tirerack has good info on the procedure.

There are other good links on the internet explaining how to bed in brake pads.

'06 Tungsten Pearl IS350,...with battle wounds and scars,...almost new.
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post #4 of 10 (permalink) Old 02-10-2011, 02:32 PM
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Yeah we need a little more info as clubfoot stated. I just did new pads and rotors, also bought a new shim kit, cleaned everything really good, anti seize compound on the edge of the pads and rotor mounting surface, a few 30mph stops and they perform like a dream.
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post #5 of 10 (permalink) Old 02-10-2011, 07:52 PM Thread Starter
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Originally Posted by clubfoot View Post
Did you try bedding them in,...were all shims and anti rattle clips replaced? Were the rotors replaced or just pads? Was everything cleaned up before installation?
Do a Google search on bedding brake pads,...tirerack has good info on the procedure.

There are other good links on the internet explaining how to bed in brake pads.
just the pads. i brought it back where i have the service done. the guy says it was the rust from the rotors. But i didn't believed him b'cus they just cut my rotors so they won't have rust on it. Maybe they didn't put the same type of brake pads on the car. can wrong material of brake pads can cause the noise?
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post #6 of 10 (permalink) Old 02-11-2011, 11:18 AM
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Depends on the compound,...I would have used the low dust oem pads myself.

It's not rusty rotors for sure 'cause mine rust up after a wash or from not driving for a few days, no noise.

You'll need to ask them what pads they used.

'06 Tungsten Pearl IS350,...with battle wounds and scars,...almost new.
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post #7 of 10 (permalink) Old 03-01-2011, 04:58 AM
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If it's an '08 then it should still be under warranty. My brakes started squeaking during cold weather so I brought it back to the dealers and they simply replaced the entire rotor and pad combo.

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post #8 of 10 (permalink) Old 03-01-2011, 09:52 AM
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Yea I would never suggest using semi-metallics, always use ceramic. Less dust and a lot quieter and a lil more $ but then you don't have to worry about wrecking when they are hot. Your anti-rattle clips may be worn or shims need replaced, as mentioned, and are you sure they are the right pads?

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post #9 of 10 (permalink) Old 03-01-2011, 08:27 PM
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theres a recall on some of the is350s and gs350s on the brake pads and rotors, just call ur dealer for more info. The pads are i think ceramic if i remember and they suck in cold weather, making a loud screeching noise, at lexus we just use BG brake quiet which soaks the pads and BG grease which lubricates the shims, to go with the new pads and rotors for the recall.

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post #10 of 10 (permalink) Old 03-16-2011, 06:19 PM
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Depending on the kind of brakes you got, most of the time semi-metalic brakes will create excessive brake noise. I'd highly suggest using a ceramic brake pad from now on. If you are not experiencing any issues when braking such as pulling to the side or a grinding like metal on metal sound then i'd assume it was cheap pads and lack of anti squeak past during the install process. Also, if the tech performing the work didn't properly clean the rotors free of all road dirt, grime, and greases this too would cause loud brakes.
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