Q: Grumbling sound while breaking at the stop light, brake pedal shakes

asked by on May 25, 2016

I have some problems with the brakes on my car. When I'm braking, there is this grumbling sound and the brake pedal shakes a bit. It happens at the stop light usually. When I press the brake and the car is about to stop, it sounds as if the anti-brake system is activated. So, I have to press the brake pedal again so that the car would stop completely. Do you have any idea what could be the issue?

Brakes, Steering and Suspension Inspection $79.99 - $89.99 Get a Quote

You are exactly right. It is your anti-lock braking system that is engaging when you hear that buzzing sound. A number of things could cause the anti-lock braking system to engage when it shouldn’t. Some of these things would include:

I would recommend having your braking system inspected by a technician who is proficient in anti-lock brake repairs. This inspection would cover all the parts listed to determine which one is causing the ABS malfunction.

When the inspection is completed, the mechanic would then relay the diagnostic information over to you to make a repair decision.

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

What others are asking

Rear passenger wheel making crunching sound

Possible causes of such noise are wheel bearings, a stuck brake caliper or seized sliding pins on the caliper torque plate, brake dust plate interference, loose caliper or torque plate, suspension interference with the body, and trapped foreign material in...

The traction control light comes on until the ignition is switched off, then it is off for a short time, then on again.

As you may know, your car is equipped with wheel speed sensors on each of the four wheels, which monitor wheel speed while relaying this information to the traction control module, which is controlled by the car's ECU. When the...

Grinding in front right wheel

Hello, and thank you for writing in. When dealing with these issues there needs to be a general inspection done of the drive shaft, transfer case, differentials, and axles. Look for any obvious signs of damage, fluid leaking, or parts...

Car running hot - 2006 Cadillac CTS

Hello. This can be caused by a few different things. Most of the time, this is caused by a restricted radiator or a water pump that is getting weak. It can also be caused by a head gasket that has...

Fuel injector not working

The fuel injectors on the engine get power at all times from a common source, and the ground side is through the engine computer. The injector may be bad, or the engine computer's internal injector driver burned-out and the computer...

Possible braking issue.

Your vehicle is new enough that there should be a manufacturer warranty so do avail yourself of that protection. If you believe the brakes have actuated, or are sticking, in one of these episodes, simply pull over and measure (or...

My brake light and ABS light came on today while driving home from work I checked it out put some fluid in it

Hello. Adding brake fluid to the system was a great idea. Although it did not turn off the ABS light, you can use that to your advantage. The light means the computer is detecting a problem, and you can scan...

More brake noise than there should be, low mileage

The brakes squeaking can be caused by the brakes overheating either from a caliper issue or glazed rotors and pads. When it comes to doing brake repairs, a brake job consisting of rotors and brake pads can only be part...

Bad engine knock, what can I do?

The 2007 Ford Fusion 2.3l Duratec is usually a very dependable engine with few problems. However, there are several issues that could cause knocking and engine seizure. The engine oil filter in this engine is a cartridge type that has...

Related articles

How to Troubleshoot a Car Exhaust or Engine Noise
Car exhaust systems and car engines make whirring, clicking, or sputtering noises if there's a faulty belt, alternator, water pump, or tension pulley.
How to Replace Drum Brakes
Drum Drum brakes are a very common braking option used on many vehicles today. While disc brakes have become the standard for use on the front and rear axles of many vehicles, drum brakes are still very commonly used. However,...
Symptoms of a Bad or Failing ABS Control Module
Common signs include an unresponsive brake pedal, the ABS Light coming on, and brakes locking up.