Q: Noise when braking at low speed

asked by on September 12, 2016

When i am in traffic or break at a low speed, the front of my car sounds like someone jumping on an old mattress. I started noticing the noise right after I got my wheel bearing hub replaced and just passed inspection. What could this be?

My car has 89600 miles.
My car has an automatic transmission.

Hello. I am not sure of your description of the sound, but I think you are describing a brake rotor runout causing the brake pads to gyrate and make a noise at low speeds and light braking it is most noticeable. You may need to have the rotors resurfaced or replaced and may even replace the front brake pads with the new rotors. If you would like to have the sound inspected first, a certified technician from YourMechanic can come to your car’s location to diagnose the cause of the noise and follow through with appropriate repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

If the clutch slave cylinder goes out, is it necessary to replace the clutch as well?

Hi there. From the description you have provided, it would be advisable to replace the clutch assembly at 100,000 miles. In order to replace the clutch slave cylinder in your vehicle, the transmission must be removed. The clutch assembly most...

My oil filter cap broke

It's very possible that the threads on the housing were damaged or warped when the old filter cap was overtightened so much. If neither of the new caps will cleanly go in, then I would recommend replacing the entire oil...

Engine idle fluctuates

This may be a result of a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...

Related articles

How Long Do Brake Pads Last?
How How long can brake pads last? Brake pads last from 25,000 miles to 70,000 miles depending on their design and material. Brake pads are part of the braking system of every vehicle. Designed to handle high friction, when the...
Why Do Brake Rotors Warp?
Brake rotors are the large metal discs visible behind the wheels of a car. These spin along with the wheels so...
How to Replace an ABS Control Module
An ABS module can be a difficult part to replace depending on the manufacturer's design. You may need to reprogram and bleed the system if necessary.