Brakes That Wake The Dead

[Dimitry]

I have the same thing - I mentioned it to my SA the last visit, he said they took a look at the system and found nothing abnormal, thus, working as intended

 

[Sayantsi]

Same reason they are on the Coupe TRACK- better brakes, better performance and look great.

Are you tracking the sedan?

 

[STREETS]

Come on...Do people who purchase the Coupe TRACK sole purpose to race it on the track? Do other cars with BREMBO brakes do so for racing applications? No. I just like the best of options and wondered if anyone has slapped the BREMBO rotors and calipers.

 

[Sayantsi]

I was just asking if you tracked the sedan or not - no need to get defensive.

 

[BacktoHyundaibychoice]

I have the same thing - I mentioned it to my SA the last visit, he said they took a look at the system and found nothing abnormal, thus, working as intended

The solution is to back into your garage. You won't wake the neighbors in the morning!

 

[Pahaska]

I have never heard a sound from my brakes. My car is garaged, but we have just had several weeks of rainy weather.

 

[STREETS]

I race around town and zip here and there. No track...lol

 

[Dimitry]

The solution is to back into your garage. You won't wake the neighbors in the morning!

There's really no neighbors in the woods here...

 

[dond13]

My driveway slopes downward quite a bit and I have never heard any brake noise while backing out. I have heard that this happens mainly in cold weather and since I live in Round Rock, Tx and keep the car in the garage, this may contribute to my lack of noise.

I have had a 4.6 for about 9 months and I have also had almost NO brake dust on the wheels during this time. Are the brake pads made of some material that is different from others? My wheels, even the front, stay very clean.

 

[PINGGOLF]

Ok.

After 17K miles. I have come to the conclusion that it is just one of those "new car" issues.

In all, it happened to me about 5 times within the first 5ooo miles.

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[BacktoHyundaibychoice]

Ok.

After 17K miles. I have come to the conclusion that it is just one of those "new car" issues.

In all, it happened to me about 5 times within the first 5ooo miles.

Hee. After a silent summer, it just started again for me this week. Granted, the brakes were wet from a wash on Saturday. But when the temps hit the 40's the morning in-reverse squeal came back. Thank goodness backing into the garage is easy with the camera!
About 8000 miles and almost a year to the day since I started this thread.

Bottom line, this is no big deal (for those who experience it for the first time).

 

[scottdk]

Bump time!

From Wikipedia -

Brake squeal
Sometimes a loud noise or high pitch squeal occurs when the brakes are applied. Most brake squeal is produced by vibration (resonance instability) of the brake components, especially the pads and discs (known as force-coupled excitation). This type of squeal should not negatively affect brake stopping performance. Simple techniques like adding chamfers to linings, greasing or gluing the contact between caliper and the pads (finger to backplate, piston to backplate), bonding insulators (damping material) to pad backplate, inclusion of a brake shim between the brake pad and back plate, etc. may help to reduce squeal. Cold weather combined with high early morning humidity (dew) often makes brake-squeal worse, although the squeal stops when the lining reaches regular operating temperatures. Dust on the brakes may also cause squeal; there are many commercial brake cleaning products that can be used to remove dust and contaminants. Finally, some lining wear indicators, located either as a semimetallic layer within the brake pad material or with an external squealer "sensor", are also designed to squeal when the lining is due for replacement. The typical external sensor is fundamentally different because it occurs when the brakes are off, and goes away when the brakes are on.

Overall brake squeal can be annoying to the vehicle passengers, passers-by, pedestrians, etc. especially as vehicle designs become quieter. Noise, vibration, and harshness (NVH) are among the most important priorities for today's vehicle manufacturers.

Apart from noise generated from squeal, brakes may also develop a phenomenon called brake judder or shudder

 

[Pahaska]

During the rainy spell we had this spring, I had some minor brake noise and judder. It was only going forward and only when the road was practically awash. It happened when stopping at traffic lights after cruising at 65 for a mile or so.

The noise was not very loud, but the car is so quiet that it startled me.

 

[Duck2010]

I didn't have this problem until about 1,300 miles. everyday when i back down my drive way my brakes are very loud. i some time think that my parking brakes are on. because to me and my other driver it feel like the car is still holding back. it seem like it is not moving freely

 

[QuantumRift]

Generally that 'reverse' chattering or squealing sound is caused by the rear end being lightly loaded. I have an old Isuzu pickup truck that in 1990, came standard with discs brake sall the way round. The rear end is light, and until I replaced the rotors with "no squeal' rotors and ceramic pads, I had that noise every time I backed up with no extra weight in the rear. Dust and other things can contribute to the noise, and it also helps if brake lube is put on the back side of the pads (usually where the shim is) as that aids in preventing chattering or squealing. If you do not agree, then add 100 lbs or so to the trunk, put it in reverse and step on the brakes, and see if the noise goes away. Virtually every time I have seen this with cars and trucks, it goes away once you load up the rear end (either with cargo or passengers).