Front end vibration

Discussion in 'General Motoring' started by Matthew Rebbert, Feb 26, 2005.

  1. Ok, here's what's happening on my 02 Santa Fe LX AWD with traction control
    and ABS with 44780 miles. When I am either maintaining or slowly
    accelerating (10-15% throttle) from 35-45MPH I get a strange strong
    vibration coming from the front end sometimes (About 20% of the time). The
    car does not pull to one side or another, and the vibration goes away if I
    alter the throttle position (More or no throttle). There is no noise except
    for the vibration. It also always shakes a little (Barley noticeable) from
    35-45MPH. Other than that it is smooth, no pulling, no warning lights ever.
    I have rotated the tires and no difference was noticed. And now a little
    back ground info, about the same time the vibration started my car stopped
    squealing. The squealing happened after driving 5 miles or so and would
    stop when breaks were depressed, or driven over 30 miles) otherwise it was
    non-stop and loud, I checked the brakes and there was plenty of material,
    and of course my dealer could never reproduce it and since I picked up after
    hours, I was unable to show them. After talking in the
    they told me it was a caliper problem and they just needed to be cleaned, so
    I just dealt with it as I did not have much time or money to get it worked
    on. This went on for about 1000-2000 miles. So my theory at this point is
    maybe a wheel bearing went bad, and that was the squealing and now the
    bearing is completely shot? Is that covered by warranty? If not on average
    what is the cost? Anyone have any other ideas? Gas mileage on a 125mile
    highway trip today was 22MPG done the scientific way (same pump, same gas
    station, and filled until the gas was visible and did not go down anymore).
    I have nothing to compare gas mileage to because it's my wife's car and I
    never watched MPG, I just made sure it got regular maintenance, gas was
    taken care of by the wife. Thanks for any help in advance!
    Matthew Rebbert, Feb 26, 2005
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  2. Matthew Rebbert

    Zotto Guest

    It's the TCS working.. When wheels tends to slip the TCS circuit brakes the
    slipping wheel in that way, if you insist to accelerate then TCS slow down
    engine, if you give less throttle wheels have grip and then TCS ends to
    TCS is GREAT to use with snow, and the only reason to switch it off is to
    have fun with slipping wheels in sporty driving. (but not so effective)
    Zotto, Feb 26, 2005
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  3. No, I know when TCS is working, it flashes a light on the dash. This is for
    no reason on dry smooth pavement.
    Matthew Rebbert, Feb 26, 2005
  4. Matthew Rebbert

    Zotto Guest

    Opss sorry, I had not read all the post with attention..
    Zotto, Feb 26, 2005
  5. Matthew Rebbert

    Striker Guest

    Check tire wear, A thing called cupping, uneven tread wear can cause
    vibration at a certain speed.
    Striker, Feb 27, 2005
  6. No, that's not it either I rotated the tires to check for that. I am
    leaning towards bearings or differential. Thanks for the thought though.
    Matthew Rebbert, Feb 27, 2005
  7. Matthew Rebbert

    hyundaitech Guest

    It sounds like your torque converter clutch is slipping. There's a TSB for
    reprogramming the trans control module to resolve this issue. Also, it's
    important to have the clean and correct fluid in the transmission.

    Go to, click on service information and webtech.
    Select your vehicle year and model, click on the tsb tab, and go to the
    transmission index and look for tsb 04-40-007.
    If you're in the U.S., you're still within the warranty period. You've
    given a good description of the problem. If you take it to the dealer
    with that description, it should get you a reprogram on Hyundai's dime.
    hyundaitech, Feb 28, 2005
  8. HyundaiTech,

    Thanks for the info it looks like that is it. Can any damage be done to
    the vehicle when driving with the shudder? Its been going on for about 2000
    miles or so, I would have taken it sooner, but I work all week and need my
    car and service is only open Monday-Friday. Thanks again, if you ever need
    someone to praise you for hard work let me know and I will call anyone you
    need me to. The service you provide to this group is great!
    Matthew Rebbert, Mar 1, 2005
  9. Matthew Rebbert

    hyundaitech Guest

    It can't be good for the torque converter clutch material itself. The
    vibration you feel is the result of a slip-stick condition. But
    realistically, probably no real damage has been done.
    hyundaitech, Mar 1, 2005
  10. Matthew Rebbert

    Zeppo Guest

    I've started noticing this happening on my new 2005 SF LX. Starts at about
    50 -55 MPH and stops at about 62-63MPH. It happens about 60% of the time.
    I've been trying to keep it under 60 for the break-in period so I'd rather
    not go faster all the time.

    It really feels like a tire or suspension problem. Reminds me of an American
    car when the tie-rod ends wear out.

    Zeppo, Mar 7, 2005
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