Brake Pulsing when wheel turned far - Cadillac XLR Forum: XLR and XLR-V Forums
 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 12-18-2011, 01:32 PM Thread Starter
XLR Pit Crew
 
Valkyrie's Avatar
 
Join Date: Aug 2011
Location: SO Cal
Posts: 51
Exclamation Brake Pulsing when wheel turned far

Hey guys,

My brakes and rotors only have 3 k on them. they were replaced when i bought the car new (but used) in august. The brakes work like a dream and perform well, with ONE exception. If i ever have to hit the brakes with the steering wheel turned almost all the way one way or another (it happens both left and right) for example, on a freeway onramp that has a very exaggerated curve or turn, and i have to come to a quick stop....the brakes pulse like an ABS reaction. It makes a grinding sound and the brake pedal pulses and bounces. What could be causing this? It can be at high speeds or even at a low speed in a parking lot pulling into a parking space.

THoughts??
Valkyrie is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 12-19-2011, 09:02 AM
Administrator
 
ccclarke's Avatar
 
Join Date: Mar 2008
Location: New England '13 XTS Platinum
Posts: 1,100
You didn't mention if OEM pad and hats were replaced with aftermarket components or not. Either way, this condition isn't normal so it's worth it to have a brake specialist check it out. This sounds like a classic symptom of rotors that haven't been bedded properly. If aftermarket components were installed, a dealer may be inclined to replace them with stock.

CC

Last edited by ccclarke; 12-20-2011 at 08:47 AM.
ccclarke is offline  
post #3 of 6 (permalink) Old 12-19-2011, 10:21 PM Thread Starter
XLR Pit Crew
 
Valkyrie's Avatar
 
Join Date: Aug 2011
Location: SO Cal
Posts: 51
Cool well...

I demanded OEM parts get put on, but as usual ur guess is as good as mine if i dont pull of the wheels myself and check. im annoyed because i was JUST at the dealer for my 30k service and had not noticed it until recently (yes i know odd). we shall see. i just dont want to go from brand new brakes and rotors (even aftermarket) to paying for new OEM components i SHOULD have had. Sounds like i got a dealer fight on my hands...i will keep u posted CC. Thanks for the advice as always.
Valkyrie is offline  
Sponsored Links
Advertisement
 
post #4 of 6 (permalink) Old 12-20-2011, 08:38 AM
Administrator
 
ccclarke's Avatar
 
Join Date: Mar 2008
Location: New England '13 XTS Platinum
Posts: 1,100
If your brake components were replaced by a Cadillac dealership, there's every reason to believe OEM parts were installed. You can bed the brakes yourself and see if the shuddering subsides or is eliminated. Otherwise, you might just need to have your rotors turned.

CC
ccclarke is offline  
post #5 of 6 (permalink) Old 12-21-2011, 02:57 PM
XLR Pit Crew
 
Join Date: Sep 2009
Posts: 343
Quote:
Originally Posted by Valkyrie View Post
Hey guys,

My brakes and rotors only have 3 k on them. they were replaced when i bought the car new (but used) in august. The brakes work like a dream and perform well, with ONE exception. If i ever have to hit the brakes with the steering wheel turned almost all the way one way or another (it happens both left and right) for example, on a freeway onramp that has a very exaggerated curve or turn, and i have to come to a quick stop....the brakes pulse like an ABS reaction. It makes a grinding sound and the brake pedal pulses and bounces. What could be causing this? It can be at high speeds or even at a low speed in a parking lot pulling into a parking space.

THoughts??
This is an odd fault. I've been watching the thread and so far have had two minor thoughts:

1/ Are the lug nuts done up to the correct torque? Have you checked the wheel bearings?
2/ Is this an actual problem or is the ABS/ESP coming on? Do you notice if you are getting a message on the DIC? (You will if stabiltrac or ABS is active)

Last edited by xlrlist01; 12-21-2011 at 03:19 PM.
xlrlist01 is offline  
post #6 of 6 (permalink) Old 12-21-2011, 04:57 PM
Administrator
 
XLR I FL's Avatar
 
Join Date: Oct 2003
Location: Ponte Vedra, FL
Posts: 1,948
THIS IS A SIGNIFICANT SAFETY ISSUE!!

SO MY VOTE IS TO RETURN THE CAR TO THE DEALER WHERE THE BRAKE JOB WAS DONE.

Take the service manager for a ride and show him what's going on.

You shouldn't have to pay a dime.

Regards

Jerry



100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3
XLR I FL is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Cadillac XLR Forum: XLR and XLR-V Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome