need more input on brake problem

Discussion in 'General Motoring' started by Austin Kupper, Dec 17, 2003.

  1. History, I turned the rotors, i had a brakeing vibration after a month.
    I replaced the rotors, same thing after about a month. The car pulls
    right, i have directional tires so i cant swap long term, but did for a
    short time and the pull reversed. i am wondering if my tires are bad and
    may be causing the brakeing vibration. when i am brakeing to a stop the
    ride gets lumpy at the end, any ideas? I get a strange metal fatigue
    noise from the driver side, only under brakeing. After takeing apart the
    calipers i can not find fault. The bolts are not bent the calipers look
    ok. I replaced the boot and seel, although they seemed ok. i was able to
    clean out some gunk. master cylender is new, i replaced a leaky
    proportioning valve which firmed up the pedal greatly.the rear boots
    were replaced. If i use the e-brake at high speed there is no vibration.
    I have never had confirmation of rotor runout, how can i do this?

    These tires do seem to run much hotter then the old ones could they be
    it. Ideas?

    Austin Kupper, Dec 17, 2003
  2. Austin Kupper

    Jason Guest

    Sounds to me as you have two problems.

    1) car pulls in one direction
    Answer: After rotating the tries you noticed the pull in the opposite
    direction, indicating that the tire needs to be checked for air pressure
    loss or even rebalanced. If this does not help check the rims for any
    major scratches this can cause the tire to be unbalanced.

    2) braking vibration,
    Answer: Try the above first if this does not fix your problem try
    checking the brake pads. Note if they are shiny upon inspection it may
    be a good idea to replace them.

    Give that a shot and keep me posted on what happens.

    Jason, Dec 18, 2003
  3. Austin Kupper

    E. Meyer Guest

    The pull is being caused by a bad tire if it changes by moving the tire

    The vibration could be a number of things. My 2000 TL started vibrating
    when braking at highway speeds. The first thought was a warped brake rotor,
    but it actually was caused by a failing upper ball joint (this car only had
    38k miles at the time). The telling symptom was that corner of the car was
    setting about an inch lower than the other side. Additionally, the excess
    heat generated by the bad ball joint also caused the rotor to warp.

    Metallic noise when braking usually means the pads are low and the wear bar
    mounted on the pad is starting to scrape the rotor. I assume you checked
    the pads when you replaced the rotors? Maybe the wear bar is bent or the
    pads are not mounted correctly.

    You don't say what model Honda you have, but most Hondas have a tiny little
    set of drum brakes mounted in the rear hubs that serve as the parking brake.
    If yours is one of those, then stopping the car with the e-brake will not
    tell you anything about the state of the rear rotors or the main brakes. If
    you happen to have a model that uses the rear disks for the e-brake, then
    you have probably isolated the problem to the front.
    E. Meyer, Dec 18, 2003
  4. Woops, its a 90 accord. Pads are new, rear brakes are drums.
    Austin Kupper, Dec 18, 2003
  5. Thx, I think all four tires are bad in one way or another. they are only
    a year old and i cant get much back on them. so much for cheap tires.

    Actualy i found that increasing the tire presure reduces the brake
    vibration. Why i dont know. I rotated tires front to back but the
    vibration remanes
    Austin Kupper, Dec 18, 2003
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.