strange noise before the car stops

[dani1983]

hello,
I hear strange noise that came from the front right wheel, the noise appear when I reduce the speed to under 20 KPH and until the car stops (i not touch brakes) only after i drive around 100km.
The noise is very similar to the noise of worn out brakes (but i not touch them).

what it could be?

[Yaris Hilton]

Worn out disk brake pads are supposed to make a squeaking or scraping noise when you're not using them. The noise goes away when you step on the brakes. When you get a scraping noise when you use the brakes, they're past worn out. The disks are ruined by metal scraping on metal.

[dani1983]

Why worn out disks supposed to make a squeaking or scraping noise when I not using them, and only in a low speed after I drive around 100km?
(I change them before 21000km)

[Phaeton]

A rock behind your brake caliper.

[dani1983]

what you mean?
what is the solution for this problem?

[1stToyota]

what you mean?
what is the solution for this problem?

Look at the condition of your rotors & look for evidence of metal dusting your wheels.

[Yaris Hilton]

Why worn out disks supposed to make a squeaking or scraping noise when I not using them, and only in a low speed after I drive around 100km?
(I change them before 21000km)

Disk brake pads have little metal things molded into them that rub the disk when the pads wear down to them. That's what makes the noise that tells you your brakes are worn out. The noise is only heard at low speeds when your foot is off the brake and goes away when you step on the brakes. That's the way disk brake pads have been made since the early 1970s or so. Like I said, if you get a grating noise when you step on the brakes, they're PAST worn out! If you are prone to zipping up to stops and standing on the brakes, you can wear them out surprisingly quickly. (Plus you waste lots of gas that way.)

[dani1983]

So the solution is to change the brake pads?

[Yaris Hilton]

Maybe. I'd first inspect them. Sounds like worn pads from here, though.

[kustom play]

i had the same thing on my XB, when i pulled the wheel off i noticed the heat sheild was dented in a bit where a rock must of hit it just right. I had to pop it back a bit and the sound was gone. simple as that

[Yaris Hilton]

Yep, could be something like that. Need to take a look at the brakes, or have someone who knows what they're doing do so.

[kustom play]

could of been a number of things listed, im going to take a guess and say dust or grime

did you figure out what it was?

[dani1983]

Can you precise where I should check the dust or grime.

[Yaris Hilton]

http://lmgtfy.com/?q=disk+brake+inspection

[dani1983]

:w00t: