Why do my brakes my a squeeling sound as i come to a stop on my car?

Question

i have a 1993 toyota corolla, auto, drum brakes, any help would be appreciated

nah all 4 of em are drums

Answer 1

Only two things make brake squeal. Poorly fitting brakes (cheap after market shoes or pads.) And worn out shoes or pads. Get this checked fast or you might not be able to stop.

Answer 2

There could be quite a few different reasons for this.:
1. Brake dust in between the pad/shoe and the rotor/drum. Some brake cleaner or Squeal Medic should help.
2. A cracked pad/shoe. Get it replace ASAP is this is the case.
3. A worn out pad/shoe will cause the metal brace the pad/shoe is attached to grind against the rotor/drum. This isn't good since you're destroying the rotor/drum. Makes it a little more expensive to repair. You'll notice if this is the case as your brakes will start to make a grinding sound and you'll feel it as you push the brake pedal down. If let go and not repaired you run the risk of losing all brake control.
Rotor finish also affects noise. The smoother and flatter the surface, the less the likelihood of the pads chattering and dancing as they ride across the surface. Rotors should be resurfaced at the proper speed and feed rate, and with sharp tool bits to achieve the smoothest possible finish. Light sanding with an abrasive disk or flexible honing brush after the rotors have been turned can improve the surface finish even more and provide an extra degree of assurance the rotors will remain noise-free.
Equally important are the pads themselves. Some friction materials are noisier than others, just as some brands of pads are quieter than others. The sound control qualities of any friction material depends on the fillers, lubricants and other ingredients that go into the mix. Some manufacturers add graphite and other materials to pads to dampen noise.
In the long run, don't use cheap pads or rotors on the car. Go with a more premium brand, like Bendix or another OE manufacturer. This will ensure longer brake life and less squeal. If the squealing gets too bad, take your car in to get it checked. Most auto mechanics will check your brakes for free.

Answer 3

Two reasons....

One is, SOME brake pads have a little squeal device on them, designed to make the brakes squeal when it's time to change the pads.

Two is, it's way past time to change the pads, and they've worn down to the rivets, which are now gouging up your rotors. Take a peek at the rotors through the holes in the front wheels - if it looks like concentric grooves are being cut in it, you'll be changing pads AND rotors :(

Fortunately the Japanese were the first to make those rotors fairly easy to replace, and not too expensive either.

Answer 4

The wear indicator is warning you it's about time to change pads. Ignore it and the next sound you will get it metal on metal, which will lead to an expensive repair where the rotors need to be replaced.

Added: Yes, I saw you said "drum brakes" but I'd bet you the front ones are disc brakes.

Answer 5

most likely the sound of brake wear indicators, also known as squeelers. It means the front pads are wearing out. Get them replaced soon before you get metal-to-metal contact and its resulting damage.

Answer 6

it is your brake pads making the squeal. You should take the tires off and inspect the pads to see if you need new ones.

Answer 7

it could be dust.spray them down with brake cleaner and see if that fixes it.or it could be you need new linings.they could be down to the rivets or metal.