Why do my brake drums squeak?

Asked By: Elisabetta Pinto | Last Updated: 4th May, 2020
Category: automotive auto parts
4.4/5 (1,760 Views . 25 Votes)
Your rear drum brakes squeal for a number of reasons. One reason is brake dust that has accumulated in the brake drum. When you apply the brake, the pads inside the drum come in contact with the brake dust, which causes the squealing. Another cause is the absence of contact between the drum and shoe.

Click to see full answer


Also question is, how do I stop my drum brakes from squeaking?

How to Stop Brake Squeal

  1. Analyze the brake squeal.
  2. Be sure new brakes are properly bedded.
  3. Install noise-reducing shims on the backs of your brake pads.
  4. Check that your brake pads are not worn out.
  5. Examine the brake pad and shoe linings to see if they are damaged or unevenly worn.
  6. Check the brake pad design.

Subsequently, question is, does brake cleaner stop squeaking? You can buy brake cleaner in a spray can, and spray it on your rotors without any problem. That is what it is made for. It dissapates very rapidly, so it must have some type of solvent in it. For the brake squeal though, they also make some type of lubricant called "Brake Quiet" or similar name/product.

Also question is, why are my new drum brakes squeaking?

Answer: Brake pads are the most likely problem. You probably have rear drum brakes and the noise you're hearing is most likely the brake shoes rubbing the backing plate. This movement is normal but your contact points probably no longer have any lubrication between the shoe and backing plate causing a squeaking noise.

What causes squeaky brakes?

Brake squeal is common and can be caused by a number of conditions: Worn pads, glazed pads and rotors, broken anti rattle clips, lack of pad insulation or insulation shims, and incorrect rotor surface cut or no surface cut at all.

26 Related Question Answers Found

Can you spray wd40 on squeaky brakes?

WE40 is NOT a lubricant, even though millions mis-use it as such. If someone truly sprayed WD40 on disc brake rotors and pads, you only need to go down to your local auto supply store and buy one of the many aerosol cans of brake cleaner sprays and spray down the rotors and pads.

Where do you lubricate drum brakes?

Drum Brake Lubrication Points
  • Don't ever put lubricant on the inside of the drum where the shoes/pads contact the drum.
  • Use lubricant on the backing plate.
  • The adjustable star-wheel that separates the shoes can be prone to freezing, so it should be lubricated.

Can brake dust cause squeaking?

The metal particles in the brake pads will cause squeaking when they rub against the metal brake rotors, which is normal. Also, normal brake function causes brake dust to accumulate which can lead to squeaking. This should quiet those brakes for you. Regular wear will eventually do the same trick.

How do you know when drum brakes need replacing?

Technical Bulletins
  1. Inconsistent brake pedal feel. If the rear brakes are drum brakes, the driver may feel vibrations under braking.
  2. Hand brake feels loose. If the hand brake requires a hard yank to keep the car from rolling off, chances are the brake shoes need replacing.
  3. Scraping noise while braking.

How much does it cost to fix squeaky brakes?


The average brake pad replacement cost is $150 per axle, and can range from $100 per axle up to $300 per axle. There are a few other pieces of hardware that are found in the brake system which might need to be serviced as well, including calipers and rotors, but the most common service will be to replace brake pads.

Why do my brakes squeal at low speeds?

Sometimes, the squealing brakes at low speed could be the result of the materials used in the brake parts. For example, the Subaru Tribeca creates a squealing noise because of the friction between brake parts made of metal and synthetic material. In some cases, the problem arises after the installation of new brakes.

What does a bad brake drum sound like?

Scraping noises when brakes are pressed
Another symptom commonly associated with bad brake drums is abnormal sounds. If the brake drums become excessively worn, they may give off a scraping or scratching sound when the brakes are depressed.

How many miles do brake pads last?

As a general rule of thumb, there's about a 40,000 mile range in play. Average brake pad life is somewhere around 25,000 to 65,000 miles. However, many people have heard of brake pads lasting more than 70,000 miles, even beyond the 80,000 mile threshold. You may have even experienced super-long brake pad wear yourself.

How long can you drive on squealing brakes?

If they're squealing because the backing plate is vibrating against the piston cup, then you may have the full life of the pad - depends on when it started. Still, that's a highly variable quantity - could be 10,000 miles, could be 50,000 miles, could be more.

What to spray on brakes to stop squeaking?


Clean the area on the piston and caliper where the pad backing plate touches. Apply the anti-squeal adhesive, reinstall the pads and button up. These anaerobic products will stay gummy until you apply the brakes and squeeze out the oxygen. Then they stick like, well, glue.

Is it OK to spray brake cleaner on pads?

The cleaner can be used on brake linings, brake shoes, drums, rotors, caliper units, pads and other areas of the braking mechanism while they're still intact. It may be a good idea to cover areas of the car that could be exposed to the brake cleaner before you apply it.

Can you spray wd40 on brake rotors?

No, it doesn't. It leaves an oily residue. For the rotor, car brake cleaner, which is isopropyl alcohol, from your local car parts store like Supacheap or Auto 1 is the best thing to clean it. You can spray it liberally on the rotor, and it will dissolve the oil residue from the WD40.

Can I spray brake cleaner without removing the tire?

Use a small detail brush with some degreaser or brake dust remover and agitate with small brush and rinse should do the trick. Best wheel cleaner ever used. Just spray on dry let it foam up and then rinse off it gets all the brake dust!

Do squeaky brakes mean they need to be replaced?

Squealing or squeaking noises usually indicate that your brake pads require replacement. Some brake pads are equipped with wear indicators in the form of small steel clips, which make a squealing sound when the pad has worn down. Glazing on the brake pads can also cause them to squeal.

What are squeaky brakes a sign of?


Squeaky Brakes Could Signal…
It occurs when a metal wear indicator is exposed on the brake pads. When the wear indicator is exposed, it produces a squealing sound to let you know that your brake pads need attention or replacing.

Can I drive with squeaky brakes?

Squeaking can be caused by several things, but is most commonly associated with the “screetchers" on the brake pads, which indicate low brake linings. While driving with low brake pads is in itself not dangerous, it's best to have the brakes checked to find out exactly how much is left.