Q: Whistling noise when braking and accelerating

asked by on

My car has gone around 120,000 miles and lately I've noticed that it started making some noises. There is an occasional whistling while I'm applying the brakes. I can also hear it when I'm increasing the speed from second gear. I had the brakes checked and they are not the cause. What could be wrong?

Hello. If the noise occurs when applying the brakes and not moving then you may have a failure in the brake assist. If it only occurs when the vehicle is moving then you may have a failure in one of the bearings or it may just be glazed brake pads.

I would need to know when it occurs. I usually start diagnosing this by getting the vehicle into the air and inspecting these parts for wear. If you plan on having this repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the noise firsthand and make the necessary 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
  1. Home
  2. Questions
  3. Whistling noise when braking and accelerating

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: Turning and braking causes grinding noise

Sounds like your brake pads might be low. The brake pad has a semi-metallic friction pad that makes contact with the rotor. When this pad wears out, the metal backing plate that it is attached to makes contact with the...

Q: Flat spot in motor.

A fixed hesitation point when accelerating points to a specific mechanical issue either in the ignition or fuel system. The mechanical advance in the distributor needs to be checked for free motion and base timing would need to be checked....

Q: Q: My car won't shift out of first gear at all.

Thanks for writing in about the transmission problem with your 1999 Mercedes-Benz S320. Typically the issue you're speaking about is a result of overheating inside of the automatic transmission. The overheating can be caused by dirty transmission fluid, or low...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...