When I apply my brakes hard at relatively high speed, the car kind of shutters..?

  #1  
Old 12-07-2009, 10:36 PM
SlickSilverG's Avatar
Registered User
Thread Starter
Join Date: Jun 2009
Location: NJ
Posts: 462
Received 10 Likes on 8 Posts
Question When I apply my brakes hard at relatively high speed, the car kind of shutters..?

There's a shake, a shimmy, a shutter to the car, when I apply the brakes hard at a high speed. Why? My buddy said it might be warped rotors or bad brake lines...

Is this covered under warranty? Cuz its certainly nothing I did, and I don't believe rotors are suppose to go to crap the way brake pads and a clutch is suppose to.
 
  #2  
Old 12-08-2009, 10:40 AM
CreativeDesignZ's Avatar
Registered User
iTrader: (8)
Join Date: Mar 2008
Posts: 1,732
Likes: 0
Received 2 Likes on 2 Posts
youre probably burning oil...
 
  #3  
Old 12-08-2009, 10:58 AM
Tollboothwilley's Avatar
Former G35driver Vendor
iTrader: (32)
Join Date: Jan 2008
Location: Vegas
Posts: 3,684
Likes: 0
Received 25 Likes on 17 Posts
what the hell...burning oil, maybe but not related

its your Rotors. they are warped. No, they are not covered under warranty. 2 options, you can turn them and reuse or buy new ones. Reusing the existing ones will inevitably result in the same shimmy later on and much quicker since the rotors will be thinner.

My answer to this was to get aftermarket X drilled/slotted rotors.
 
  #4  
Old 12-08-2009, 11:00 AM
WILLIE BEANS's Avatar
Registered User
iTrader: (3)
Join Date: May 2007
Location: pinellas county FLA, queens N.Y.
Posts: 4,383
Received 27 Likes on 21 Posts
/\ yeah lots of options as far as aftermarket rotors and pads ..

i got DBA slotted rotors with hawk pads all around ..
 
  #5  
Old 12-08-2009, 11:47 AM
SlickSilverG's Avatar
Registered User
Thread Starter
Join Date: Jun 2009
Location: NJ
Posts: 462
Received 10 Likes on 8 Posts
What made them get warped??? If it's nothing I did, and it's not expected wear and tear, then why does my Extended Warranty cover it?
 
  #6  
Old 12-08-2009, 11:58 AM
Tollboothwilley's Avatar
Former G35driver Vendor
iTrader: (32)
Join Date: Jan 2008
Location: Vegas
Posts: 3,684
Likes: 0
Received 25 Likes on 17 Posts
Its something you did. It comes down to braking habits. Typically a few hard braking runs from high speeds. People don't normally let them cool enough properly and then you get the hot spots/warped effect.
 
  #7  
Old 12-08-2009, 12:17 PM
brandon1978's Avatar
Registered User
iTrader: (3)
Join Date: Jul 2005
Location: Austin, TX
Posts: 382
Received 13 Likes on 13 Posts
Not torquing the lug nuts to spec after reinstalling the wheels can also cause this problem. However, I always re-torque my lugs and I have the same issue (less than 50,000 miles on my 2006 6mt, but still on original pads).

According to StopTech this issue is never that the rotor is actually warped, it is uneven pad deposits:

http://www.stoptech.com/tech_info/wp...rakedisk.shtml

StopTech's solution: http://www.stoptech.com/tech_info/faqs.shtml#26

I may try that when I have the time.

[Just checked, they don't make Hawk Blue's for 06 or 07.]
 

Last edited by brandon1978; 12-08-2009 at 12:31 PM.
  #8  
Old 12-08-2009, 12:20 PM
gary c's Avatar
Registered User
iTrader: (10)
Join Date: Feb 2005
Location: Valencia, Ca
Posts: 19,433
Received 1,132 Likes on 1,002 Posts
Warped Rotors, there are two causes....forging process they are not allowed to cool long enough. And secondly, over tightening your lugs when installing the wheels. Your wheels should always be installed using a torq wrench set a 85 LBS that way every single lug will have the same pressure. Warped rotors have zero to do with how you drive, the only control you have is making sure they're installed correctly! You can have your rotors turned to fix this issue. Nissan can do it with them on the car!
Gary
 
  #9  
Old 12-08-2009, 12:25 PM
SlickSilverG's Avatar
Registered User
Thread Starter
Join Date: Jun 2009
Location: NJ
Posts: 462
Received 10 Likes on 8 Posts
Yeah exactly I just bought my car recently, and I haven't been on any race tracks.

They did any such brake, rotor, wheel work, not me.
 
  #10  
Old 12-16-2009, 03:46 PM
myC17isfaster's Avatar
Registered User
Join Date: Jul 2009
Location: Columbus, MS
Posts: 61
Likes: 0
Received 0 Likes on 0 Posts
had the same thing happen to me only months after buying my car (one previous owner). the dealer said they put new pads on front and back but they just turned the rotors. at about 45k miles had the same shuttering when braking for high speeds.

new x drilled/slotted rotors + hawk hps all around + ss lines + motul fluid =

parts were a little pricey but stopping is so smooth and just all around awesome now.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Tolboothwilley™
Exterior-Vendor
6
07-28-2016 12:42 AM
kenthung
G35 Coupe V35 2003 - 07
0
07-21-2015 05:56 AM
vstypicals
Buying, Selling & Leasing Discussion
6
07-20-2015 10:55 PM
cyrus32
G35 Sedan V35 2003-06
2
07-18-2015 06:22 PM
G35OUTLAW6MT
G35 Sedan V35 2003-06
0
07-13-2015 02:26 PM


Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: When I apply my brakes hard at relatively high speed, the car kind of shutters..?



All times are GMT -4. The time now is 05:28 AM.