Recently I had the wheel bearings replaced to solve some noise problems. Now when I apply brakes at low speed there is this buzzing down and you can feel a pulse on the brake pedal. Its really annoying. ABS doesn't kick on. It doesnt happen once per brake. It can be numerous times while I hold the pedal down. Any ideas? I've had many noise issues which I am able to locate but this is the first that really gets me wondering.

 

i have the exact same issue

 

Get your G on a rack and check your rotors, one or more may be warped. That's an easy fix, they just need to be turned. Rotor warping is caused by a tire installer over tightening your lugs with an impact gun. Wheels s/b installed using a torque wrench set at 85, this will eliminate warping....Gary

 

I know what you're talking about Gary but that isn't it either. Rotors are 100% fine. Also I hadn't had the tire touched in a while. Couldn't be the issue. I think maybe something is wrong with the ABS line. But the ABS isn't on. Which is the part that puzzles me. Wish you could feel the pulse on the pedal. I had lot of camber wear on the front tires. I just got them replaces with Eagle GT. I haven't heard anything so far. The old tire wear was so bad the metal bands were showing.

 

I have the exact same problem. Its a buzzing "boing-boing" sound and its random. My abs light is not on either. I drove around with my mechanic in the car and he believes its an abs sensor going/gone bad. That is also what the person i bought the car from thought it was. I dont feel like it effects the car from stopping. But its a very annoying sound and feel. I'll most likely have the mechanic check out the ABS sensor.

PLEASE let me know if you find out anything about this problem or fix it.

 

ALSO, i replaced all 4 rotors and pads and the sound still exists

 

I don't think the problem is related to rotors as it only happens at specific speeds while I apply the brakes. Maybe it's just too sensitive. Doesn't mean the abs sensor is bad. I'm guessing mine is sensitive because I have 115k miles?

 

is there a part in the bushings that may cause a rattle/squeak/buzzing sound while braking if it was in a bad shape..

 

^^my radius rod bushings are really bad. They are broken into. I ordered a set of whiteline and gonna put them on. Hopefully that might solve? If not, then Atleast I replaced a worn part lol but I'm shooting for 2in1 lol

 

Which wheel bearings were replaced? If it was the front, there is something called a "tone rig" which affects your ABS. Need to make sure that 1) the ring wasn't damaged during the install, and 2) that the ABS sensor has been properly gapped. If not, it could cause some of the ABS issues you are having.

I think you need a mechanic with the right tool to access the speed sensors, he can tell if one is off from the others.

Here's a picture of mine that was damaged by an impatient tech while installing an alignment kit.

 

Yikes. As far as I know if the tone ring or the sensor was it properly gapped and it's rubbing the ABS will kick on at all speeds. I don't get any ABS light at all. I wil call my mechanic now and ask if he did have it installed correctly. Later on I will put it on a jack and find out if he really did or didn't. If he didn't ill get a reinstall lol. I'll also ask him if my ABS sensor is alright. From what he told me he said the sensor is really sensitive.

 

The sound i am getting is more like a knock from the front right side. Actually it sounds exactly like a constant knock on a wooden door a low speeds (if you keep pressing the brakes but not fully engaged).

At high speeds you don't hear/feel a thing.

if anyone has experienced this, your help would be highly appreciated.

 

Knocking sounds?
Compression rods? Lower control arm?

If you have stance coilovers you might be suffering from the bad pillow mount clunk.
How are your struts
Also bad alignment can make a car horrible to drive. If I were you I'd get an alignment before anything.

 

okay driving to work this morning on normal road conditions my ABS SLIP VDC lights are on. But the buzzing/pulsing sensation i got earlier is now gone. Any ideas anyone?

 

what was your problem? did you get an alignment?