Car shakes when braking

Tiny
SHAWNALFREY
  • MEMBER
  • 2006 PONTIAC GRAND PRIX
  • 6 CYL
  • AUTOMATIC
  • 116,000 MILES
I have an issue. I just recently noticed that when driving at speeds of 50-80 mph and when I brake I get a vibration shaking in the front end. I was told by Advance Auto my brakes and rotors are fine and Firestone says without looking that my rotors they are warped. I do not know who to believe. The guy trying to save me money or the one trying to take my money. It only happens at high speeds. I drive locally it seems to be fine, but when I come to a stop I can actually hear some kind of rubbing with the brakes.
Monday, June 6th, 2016 AT 5:27 AM

7 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Usually that is caused by front rotors being warped. Can you feel it in the steering wheel at all? Have the brakes been inspected?
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Monday, June 6th, 2016 AT 6:43 AM
Tiny
SHAWNALFREY
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  • 19 POSTS
Somewhat feel in steering and sometimes it feels to pull a little. I have not really had the brakes looked at, but just had tires re-balanced and rotated. Two of them were out of balance. I getting ready to take a ride on freeway to see if that helped any.
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Monday, June 6th, 2016 AT 6:55 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
An out of balance tire will not cause a vibration while braking. More than likely your front rotors are warped.
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Monday, June 6th, 2016 AT 12:14 PM
Tiny
SHAWNALFREY
  • MEMBER
  • 19 POSTS
Im getting rotors today and brakes. Dont know why the guy at advance auto told me that. I usually get really good advice from them. Thank you saturntech9 hoping this fixes my problem
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Tuesday, June 7th, 2016 AT 8:05 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Sometimes a auto parts store isn't the best place to get advice. It will vary from employee to employee some good some bad.
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Tuesday, June 7th, 2016 AT 9:37 AM
Tiny
SHAWNALFREY
  • MEMBER
  • 19 POSTS
Yea I know, this guy didnt even want me to purchase a jack there. Told me to go to harbor freight. So that I did. And it is my left rotor, just cant get the dang bolts out to change it.
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Friday, June 10th, 2016 AT 2:44 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
The jacks at harbor freight are cheaper.I got there little 2 ton trolly Jack there like Atleast three years ago.I use it for my travel Jack my big 3 ton Jack is too heavy to travel with. Let me know how it goes.
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Friday, June 10th, 2016 AT 9:58 PM

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