Question about 1996 Pontiac Bonneville SE CA Value

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Front end shaking 1996 Ponitac Bonneville SE

1996 Pontiac Bonneville SE I've replaced rotors ,new tires but the front end shakes when I apply the breaks but rides smooth at all speeds it .I've even replaced the drums in the back.

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  • dewey jones
    dewey jones Mar 07, 2009

    no rotor in back has drums , I've replaced the rear drums, And I did have one bad hub bearing that I've replaced on the driver's front

  • dewey jones
    dewey jones Mar 07, 2009

    I've replaced the driver axle and hub bearing axle boot was leaking and the hub was dry and making noise .maybe I should check the other axle for a bend or bow.. didn't think of that

  • dewey jones
    dewey jones Mar 07, 2009

    Front will drive has cv joints in the axle .. no u joint no drive shaft

  • dewey jones
    dewey jones Mar 07, 2009

    caliper??? Didn't think of that,I will re think this.thanks

  • josh1111 May 11, 2010

    hows the caliper feel when you disconnected it, could it be sticking?check out ball joints

    is the stabilizer bar bushings rotten? the more i think about it it seems to be a brake problem than an suspension prob. since it only occurs when you brake. does the brake pedal and steering wheel vibrate during this occurence?

    do you get heavy vibration of the steering wheel, gets worse as the brakes get hotter?

    ill think on this some more.

  • josh1111 May 11, 2010

    u joints can do some weird things too

  • josh1111 May 11, 2010

    make sure the axles arent bent? check out you u joints.

  • Corey Morgan Dec 29, 2012

    check rack and pioin for popping wen vehicl at rest slighty move sterring wheel back fowreth slowly u feel popen sound time for new rck poion



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I hope you have found the problem, but if you haven't I have a question. Do you live in the rust belt?? If so, clean the rust off of the back of the rotors and the hub. When the wheel is mounted on there and if there is a significant amount of rust under the rotor it wont allow the rotor to seat flat on the hub, causing excessive runout. If not, check the wheel balance and condition of the inner and outer tie rod ends. If there is excessive play in the tierod ends (inner or outer) it can accentuate an imbalance condition and/or a slight amount of runout from the rotor/hub/wheel assembly. By the way, you replaced the rotors. Are they of good quality or are they the cheapest ones you could find?? The problem could still be the rotors if you bought the "least expensive" ones.

Posted on Jun 04, 2009

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Check for runout in your wheel bearing hubs. You can also hit your e brake lightly and see if it shakes then. If it does, it is in the rear rotors which will also warp.

Posted on Mar 07, 2009


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When i drive it it shakes really bad it has new tires and have hade them balensed severl times

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