Brake throb
#1
Instructor
Thread Starter
Brake throb
Alright guys
I've read the threads about warped rotors.
How come my break pedal pulses under freeway speeds only? I've had warped rotors before and they consistently pulse. These are smooth until I get the car warmed up and travelling fast. Then the first freeway braking is like massage for my right foot.
AND... there is an "out of balance" sound from my left front in the morning that goes away when the car is up to heat and the brakes don't throb...
Riddle me this.
I've read the threads about warped rotors.
How come my break pedal pulses under freeway speeds only? I've had warped rotors before and they consistently pulse. These are smooth until I get the car warmed up and travelling fast. Then the first freeway braking is like massage for my right foot.
AND... there is an "out of balance" sound from my left front in the morning that goes away when the car is up to heat and the brakes don't throb...
Riddle me this.
#2
Three Wheelin'
Can't tell ya why, but mine does the same thing. I'm just getting new EBC rotors and YellowStuff pads. Also going to change brake fluid to Motul RBF600.
#3
Instructor
Join Date: Mar 2002
Location: Bay Area, CA
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You may have uneven pad deposit on your rotors. I am troubleshooting this exact symptom with my rotors. I recently "re-bedded" in my brakes to in theory, clean off the rotors and so far, the brake pedal pulsing went away. We will see if it stays that way within the next few days of driving. Did you "bed" or "burnish" in your pads originally?
#4
Instructor
Thread Starter
Originally Posted by korchen
You may have uneven pad deposit on your rotors. I am troubleshooting this exact symptom with my rotors. I recently "re-bedded" in my brakes to in theory, clean off the rotors and so far, the brake pedal pulsing went away. We will see if it stays that way within the next few days of driving. Did you "bed" or "burnish" in your pads originally?
![Smile](https://acurazine.com/forums/images/smilies/smile.gif)
It doesn't really explain the noise though.
#7
Senior Moderator
Originally Posted by korchen
You may have uneven pad deposit on your rotors. I am troubleshooting this exact symptom with my rotors. I recently "re-bedded" in my brakes to in theory, clean off the rotors and so far, the brake pedal pulsing went away.
I've re-bedded a couple times, and by the feel of it, I think I need to do it again... (now at 75K miles)
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#10
Senior Moderator
Originally Posted by aznboi2424
they're multiple high speed quick stops
![rofl](https://acurazine.com/forums/images/smilies/rofl.gif)
Came up on stopped traffic going a little too fast and locked up the brakes... I don't get to feel the ABS kick in on dry pavement that often
![Tongue](https://acurazine.com/forums/images/smilies/tongue.gif)
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