LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

brake shake help please!

Thread Tools
 
Search this Thread
 
Old 10-22-2012, 04:31 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
baltsk8er69's Avatar
 
Join Date: Dec 2011
Location: Abingdon,MD
Posts: 615
Likes: 0
Received 0 Likes on 0 Posts
Default brake shake help please!

2 different sets of pads and rotors car still shakes under braking at higher speeds. Under 30 mph brakes perfect. I can't take this shaking anymore. The car also shakes at 60 and will go away around 70. It has new wheel bearings in the front. New pads and rotors all around. Pads have been properly bedded. Wheel bearings and tie rods pass the wheel grab test. Any opinions?
Old 10-22-2012, 05:01 PM
  #2  
On The Tree
 
Jayzvette's Avatar
 
Join Date: Jul 2002
Location: Mass
Posts: 134
Likes: 0
Received 0 Likes on 0 Posts

Default

have you had your tire shop road force high speed balance them?? could be a bent rim, bad tire balancing. is the problem only during braking or is it there all the time?
Old 10-22-2012, 05:03 PM
  #3  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
baltsk8er69's Avatar
 
Join Date: Dec 2011
Location: Abingdon,MD
Posts: 615
Likes: 0
Received 0 Likes on 0 Posts
Default

The wheels have been road force balanced. It happens every time I hit the brakes. But the car also shakes at 60 mph. It has 4 new rims as the old owner had bent 3 of them. And 4 new perrelli pzero tires
Old 10-22-2012, 07:10 PM
  #4  
TECH Enthusiast
 
texasGXP08's Avatar
 
Join Date: Oct 2008
Location: Rochester, NY
Posts: 593
Likes: 0
Received 0 Likes on 0 Posts

Default

Assuming that everything is new, including the rotors, I would inspect and grease the caliper slider pins to make sure there isn't any binding.
Old 10-22-2012, 07:20 PM
  #5  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
baltsk8er69's Avatar
 
Join Date: Dec 2011
Location: Abingdon,MD
Posts: 615
Likes: 0
Received 0 Likes on 0 Posts
Default

That was done as well. I'm running out of answers . I'm about to replace tie rod ends and ball joints. I've already done struts. I'm so sick.of this shaking.
Old 10-22-2012, 11:59 PM
  #6  
Moderator
iTrader: (4)
 
91parkave's Avatar
 
Join Date: Feb 2008
Location: Arizona
Posts: 2,079
Received 8 Likes on 7 Posts

Default

Try your cv joints im think if your cv axles have been compromised in the past that could be your source of vibration
Old 10-23-2012, 12:20 AM
  #7  
On The Tree
 
1999CamaroSS's Avatar
 
Join Date: Feb 2012
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Default

go get an alignment.
Old 10-23-2012, 07:21 AM
  #8  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
baltsk8er69's Avatar
 
Join Date: Dec 2011
Location: Abingdon,MD
Posts: 615
Likes: 0
Received 0 Likes on 0 Posts
Default

Alignments been done in the last 3000 miles
Old 12-09-2012, 07:01 PM
  #9  
Teching In
 
1quickgm's Avatar
 
Join Date: Mar 2011
Posts: 10
Likes: 0
Received 0 Likes on 0 Posts
Default

I have alomost the same problem and had the rotors turned and new pads on the front and it went away for a few weeks and is back. But it doesnt do it the same amount everytime or on a consistent basis!
Old 12-09-2012, 08:19 PM
  #10  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
baltsk8er69's Avatar
 
Join Date: Dec 2011
Location: Abingdon,MD
Posts: 615
Likes: 0
Received 0 Likes on 0 Posts
Default

I replaced inner and outer tie rods and wheel bearings and rebedded the brakes. Problem solved. Took about 3 hours. Rockauto.com
Old 12-23-2012, 09:51 PM
  #11  
TECH Enthusiast
 
08 pimpala ss's Avatar
 
Join Date: Dec 2012
Location: WEST PALM BEACH FL
Posts: 696
Likes: 0
Received 0 Likes on 0 Posts
Default

I got a 08 impala ss and i am having a similer problem i feel a viberation from the front end only when between 20-17 mph on a slow down with or with out brakes.. I have put new cv joints motor mounts pads rotors tie rods other than that the car is perfect somebody help thanks



Quick Reply: brake shake help please!



All times are GMT -5. The time now is 08:42 PM.