Anyone's brakes grinding?

[BoOsTiN]

Just curious if anyone else is experiencing the same thing that I am.
At about 11k miles the front brakes started to grind when coming to a stop. Took it to the dealershit and they said the rotors were glazed. They had them resurfaced and off I went. Under 1k miles later the brakes are back to grinding again. Back to the dealer I go. This time i actually talk to the tech and he says its normal due to the high metal content in the brake pad. Then I asked why it took 11k miles for it to start grinding if it was normal. He spouts off something about the wear of the rotors causeing the noise and its completly normal.
Does this sound off the wall to anyone else? Is anyone else having any brake troubles?
FYI: Plenty of brake pad left so thats not an issue. Also when they resufaced the rotors they did not change the pads. Could this cause any problems? Is it possible to "glaze the rotors and not the pads themselves?

 

[AZDriftR]

are they stock pads, or el cheapo bargain pads?

 

[Dezoris]

He is right, higher friction material, equals increased shock, on the rotor. If you did not bed in the rotors, and pads properly when you got the car this could have been a big factor.

Engine break more, stand on the breaks less.

If you have glazing or hot spots you are pushing the break system too hard.

High speed breaking will cause this on the MSP as will most cars.

Higher performance break parts usually give you less pad and rotor life, if not driven appropriately.

Here is an article I wrote, focus here on the break in and some of the terms it will help you understand better.

http://www.hondalife.com/modules.php?name=Sections&op=viewarticle&artid=12

 

[BoOsTiN]

Still the ol' stockers.
Im waiting till they wear down to upgrade but this damn grinding is freakin annoying.

 

[ZoomingMSP]

my 2003.5 is doing the same thing i think. Every now and then when i stop the breaks make an awful sound. I can even feel a vibration in my break petal when it does this. I know this cant be normal and if it is Mazda sucks ass.

 

[BoOsTiN]

He is right, higher friction material, equals increased shock, on the rotor. If you did not bed in the rotors, and pads properly when you got the car this could have been a big factor.

Engine break more, stand on the breaks less.

If you have glazing or hot spots you are pushing the break system too hard.

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Thanks for the link. Good article.
I am familiar with the break-in procedure.
Unfortunately I was not able to do so on my car.
It was the test drive car before i bought it so im sure it has seen some hard miles.
So you think that the grinding is normal then?
Is your car grinding yet?
Thanks for you help.

Julio

 

[Dezoris]

You may want to pull your wheel off and look at how much meat is on your pads.

You should be able to see the pad material. If you have pad material on there, then the grinding is not a typical grinding due to not having enough meat on the pads.

More than likely it is caused by hot spots or hardened spots on the rotor. Basically, there are spots on the rotor that are harder than others which would cause, vibration, and with metallic pads, excessive noise, "dragging"

Here is a good pic of a rotor that has been over worked the actual blue spots on the rotor are caused from over heating.

The outer edge is caused by pads that were worn down to the backing and cutting into the rotor. With 12k miles on I doubt that is your problem unless your calipers are bad (doubtful if both your fronts are noisey)

These pics are good because the it shows two kinds of wear.

1.)Overheating "hot spots" "Hard spots" on the rotor
2.)Scarring or grooving secondary to having worn pads or bad caliper.

One other option would be that the rotors were over tightened on the hubs, or the caliper assembly bolts were over torqued, it could cause vibration noise or warping of the rotors, in some cases. But if the mechanic pulled your rotors then they should have been put back on right.

Once you ruin a pair of rotors, if indeed they were overheated, warped, and now already cut down, I would really investigate new pads and rotors.

If your pads are being over worked from hard rotors, likely most of the pad layers are overheated, or uneven as well. If you put on new rotors with the current pads you risk the same issues.

If you 100% sure the rotors are not warped or have hot spots you may want to have them cut again and put new pads on, again following the "Bedding-in" proceedure we talked about.

If you have the money do the pads and rotors. if not do the pads.

 

[Yellospeed]

My brakes did the grind as well a few weeks back... and it's intermittent...

My dealer said I overheated them... and that the rotors were warped and that the pad material were seperating...

But mind you there was lots of materials left... and can still drive without a problem...

Dealer is replacing the front ones for me..... rotors and pads... with a warning to go easy on the brakes.


The rotor.. when inspected... then only I could tell was that on the face, the outer 1/2 ring looked like some snowflake spots were developing on it... you can see them better when the rotors are wet and starting rusting just a bit...

My two bits... hope you can get them replaced too...

 

[MazdaDryvr]

Mine arent grinding but I do get some vibration if I have to brake hard. Nothing serious but I am going to have it looked into.

 

[BoOsTiN]

There's plenty of material left on the pads.
Im sure the rotors are not warped or have hot spots.
I have no Idea whats wrong with them.
All I know is its freakin embarassing to have a new car sounding like this and the dealer telling me its normal.
"its a characteristic of the car".
Im sure we've all heard that one before.
Well considering mazda has a 12k mile warranty on wear items such as brakes and i took my car in before it hit 12k, i'll be trying hard to get the dealer to replace all parts for free.
Wish me luck.

 

[Dezoris]

You'll need it. Let us know.

 

[Drain1STH]

Grinding brakes

I have been having a horrible time with my brakes. It started when my brake light went on. So I called the dealership and made an appointment to bring it in. I brought it in and they told me that my back brakes were dangerously worn and that i needed to have the work done. They quoted me a price of $600. I couldn't afford to spend that kind of money so I picked up my car.

When I was leaving the dealership, there was a horrible grinding noise coming from my brakes that I didn't hear before.

I consulted many people about this and everyone I speak to says this is very suspicious....especially since the car only has 36000 miles on it and I have never even had to replace my front brakes. The rear passenger side had gotten so bad that the rim is starting to rust.

Mazda told me this is just normal wear and tear and that the only one that is going to pay to have it fixed is me. They say there is absolutely nothing wrong with them otherwise.

Anyone have any thoughts on this?? Any comments, Email me since I don't get a chance to check the forum often.

Luigina
Drain1STH@aol.com

 

[JPBlackMP5]

Like you I have had the same problem, since about 9K miles. I've taken it in to two local dealerships who claim the same...still plenty of pad left..had them resurface the glazed rotors...which stopped the grinding noise...for only a short while..within 1K miles...had problem again. It's intermittant now. And I'm really easy on the brakes now...

(huh) could it have anything to do with the ABS? ignorant enuff to ask that inquiry.

Just curious if anyone else is experiencing the same thing that I am.
At about 11k miles the front brakes started to grind when coming to a stop. Took it to the dealershit and they said the rotors were glazed. They had them resurfaced and off I went. Under 1k miles later the brakes are back to grinding again. Back to the dealer I go. This time i actually talk to the tech and he says its normal due to the high metal content in the brake pad. Then I asked why it took 11k miles for it to start grinding if it was normal. He spouts off something about the wear of the rotors causeing the noise and its completly normal.
Does this sound off the wall to anyone else? Is anyone else having any brake troubles?
FYI: Plenty of brake pad left so thats not an issue. Also when they resufaced the rotors they did not change the pads. Could this cause any problems? Is it possible to "glaze the rotors and not the pads themselves?

 

[itz_alan]

isnt the grinding thing from abs? thats what i always thought? so then what exactly does the abs do? err im a noob..

 

[Rich24km]

man mine did that grind s*** on Snow when i tried to stop fast, but that was the only time. I slammed on breaks to not hit a deer running about 60, and it didn't do, but after that i got a little bumping feeling when i breaked from fast speed but no grinding. The next time was in the snow, then i felt the grinding, i thought it was some kind of weird abs, i'm not sure tho. I got it last week when i almost missed a turn and slammed breaks again, but it stopped fine, and my breaks haven't done it all since then, but it does it when i hit them real hard, so i thought it was abs, and also i get a kind of pulsating grab, release grab release but thats only when i'm going like 15 miles an hour and barely hitting the brakes to coast to a stop, i down shift alot more now....but i'm curious also, what does the abs feel like, cause i've felt it in other cars, but i haven't felt it at all in this, its just like my mp5 that didn't have abs on it, and the grinding is the only feeling i've had anything remotely close to abs????

 

[CommieSpeed]

man mine did that grind s*** on Snow when i tried to stop fast, but that was the only time. I slammed on breaks to not hit a deer running about 60, and it didn't do, but after that i got a little bumping feeling when i breaked from fast speed but no grinding. The next time was in the snow, then i felt the grinding, i thought it was some kind of weird abs, i'm not sure tho. I got it last week when i almost missed a turn and slammed breaks again, but it stopped fine, and my breaks haven't done it all since then, but it does it when i hit them real hard, so i thought it was abs, and also i get a kind of pulsating grab, release grab release but thats only when i'm going like 15 miles an hour and barely hitting the brakes to coast to a stop, i down shift alot more now....but i'm curious also, what does the abs feel like, cause i've felt it in other cars, but i haven't felt it at all in this, its just like my mp5 that didn't have abs on it, and the grinding is the only feeling i've had anything remotely close to abs????

Yeah that wierd grinding is our ABS...it freaked the s*** out of me the first time it went off on my 2003 ES and its the same on the MSP. Keep your foot down once it goes off and press hard!!! Try to brake in a manner that makes it not engage though, unless you are in an emergency situation. And look out for those deer..you are lucky to have not tagged it.