Q: A woff woff sound when applying breaks in 2004 RAV4

asked by on

Car makes a woff woff sound when applying breaks, Just started today. Can't tell if it's front or rear.

What you are describing is a sign of warped brake rotors. When you press on your brake pedal, this activates a hydraulic pressure which forces small pistons inside your brake calipers to push the brake pads against the brake rotors which is what causes the stopping power you are familiar with when pressing your brake pedal. When this happens, an enormous amount of heat is generated due to the friction between the brake pads and rotors. The brake rotors eventually cool down and then heat up again the next time you press on the brakes. Over time this can cause them to warp slightly causing very small low spots on the surface of the brake rotor. When this happens and the brake pads are applied again to the rotors, this causes an uneven surface (on the rotor) to be applied to the flat surface brake pad, which can cause a vibration, shaking or very loud grinding sound. I would recommend having an expert from YourMechanic come to your location to diagnose and replace your brake rotors.

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
  1. Home
  2. Questions
  3. A woff woff sound when applying breaks in 2004 RAV4

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

Q: My car is overheating - 2010 GMC Terrain

This suggests that there may not be coolant flowing from the motor to the radiator to be cooled back down after circulating through the engine. The lower hose is also responsible for recirculating the cooled down fluid back into the...

Q: Brake lights out in a 2005 Toyota Highlander

Your suspicions about the connector being faulty would be supported by your symptoms, but a blown fuse would result in none of the brake lights working. I would suggest having a certified mechanic like one from YourMechanic inspect your brake...

Q: why won't my overdrive work

Hi there. The overdrive clutches in the transmission could be slipping causing the transmission not to shift into overdrive. I recommend seeking out a professional, such as one from Your Mechanic, to help you diagnose your transmission.

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.