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When I apply the brakes the front end shakes?

Tiny
SHOLSTROM01
  • MEMBER
  • 1997 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 14,900 MILES
When I apply the brakes the front end shakes but only when Im on like the highway. I just replaced all four brakes. What would be causing this?
Monday, March 17th, 2008 AT 5:18 PM

3 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
You need to check the rotors install new one if you have not done that yet. Here is a guide that can help

https://www.2carpros.com/articles/steering-wheel-shakes-when-accelerating-or-braking

and

https://www.2carpros.com/articles/how-to-fix-a-car-with-shaky-steering-wheel-when-braking

Please go over these guides and report back.
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Monday, March 17th, 2008 AT 5:25 PM
Tiny
THE FACTORY MAN
  • MEMBER
  • 50 POSTS
Brake pulsation comes from rotor thickness variation. Thickness variation comes from a rotor that has run-out. Run-out comes from incorrect or uneven wheel nut torque, dirt/rust between the rotor/hub interface or a hub that has run-out. You first need to fix the cause of the run-out to prevent the repeat problem of brake pulsation. All GM dealers have a very specific TSB that address this issue and when the belletin is followed and the run-out measured and compensated for, the problem is fixed.
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Thursday, March 20th, 2008 AT 1:37 PM
Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
BMRFIXIT is right replace the rotors, but also, clean the hub up good. Remove all rust if possible. This will help alot.
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Thursday, March 20th, 2008 AT 1:56 PM

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