2008 HYUNDAI ELANTRA SE (CON'T)

Discussion in 'Hyundai Elantra / Lantra' started by Tracie, May 12, 2008.

  1. Tracie

    Tracie Guest

    Hello all. This new post is actually a continuation of my old post
    regarding the same problem; however, I do have some new information
    that I am hoping someone will be able to help me out.

    To make a long story short, my car vibrates slightly while idling at a
    standstill. Does not matter if the clutch is pushed in with my foot
    on the brake, or if the car is in neutral with the clutch out and my
    foot on the brake. It still vibrates gently while stopped and
    idling. Here is the new part. I noticed that without fail and
    everytime I very lightly tap the gas pedal while this is happening,
    the vibrating will completely stop. When I let off the gas pedal, the
    vibrating will continue again in a few seconds. Press the gas pedal
    again very lightly, vibrating stops. Let off gas pedal, vibrating
    begins again. Any ideas on if this is normal idling vibration, or
    should I take it in for a look?

    THANKS!
     
    Tracie, May 12, 2008
    #1
  2. Tracie

    Victek Guest

    Hello all. This new post is actually a continuation of my old post
    In my experience it's not uncommon for cars to vibrate if they're idling a
    little slow and then the vibration goes away when you add gas and the rpm's
    go up. Still, if I were you I'd have the dealer (and a trusted mechanic as
    well) look at it since the car is new and you've also mentioned concerns
    about the vibration with regard to shifting. Since no one in this NG can
    hear the problems you're describing we can only speculate about what's going
    on. JMHO, YMMV <g>
     
    Victek, May 12, 2008
    #2
  3. Tracie

    Tracie Guest

    Thanks for the response. The car does not vibrate when I shift. In
    my first post, I was saying that if I am in neutral and shift to 1st
    gear to take off, the gentle vibration will completely stop. But
    thanks for the insight. The car does not seem to have any other
    problems. I LOVE IT!
     
    Tracie, May 12, 2008
    #3
  4. Tracie

    Tracie Guest

    After listening a little more closely to this noise, it almost sounds
    like a "buzzing" noise....not really a vibration. I can't feel
    anything in the steering wheel, but if I put my head down towards the
    dash, I can hear a slight rattling/buzzing noise coming from the front
    of the car. Again, keep in mind as soon as I just touch the gas
    pedal, it completely goes away. Is this just the noise that the 2.0L
    engine makes while idling?

    THANKS!
     
    Tracie, May 12, 2008
    #4
  5. Tracie

    Mike Marlow Guest

    Your car is still under warranty, right? Why not take it in to the dealer
    and get it scanned and fixed?
     
    Mike Marlow, May 12, 2008
    #5
  6. Tracie

    nothermark Guest

    sounds more like something resonating in the dash assembly
     
    nothermark, May 13, 2008
    #6
  7. Tracie

    Tracie Guest

    Well, I took it to the dealer and they told me it was the cooling fan
    kicking on. They told me that when I step on the gas, the reason the
    sound goes away is because I am changing the idle speed and
    circulating the coolant. Does this make sense to anyone? They also
    told me (if I can remember this right) that the reason the cooling fan
    comes on (or goes off) is to try to conserve gas. Sound right to you
    guys?
     
    Tracie, May 14, 2008
    #7
  8. Tracie

    Tracie Guest

    Forgot to ask....could the idle be set too low? And if so, can this
    be adjusted since it is not a carbuetor?
     
    Tracie, May 14, 2008
    #8
  9. Tracie

    jp103 Guest

    My guess is that the engine has a slight vibration at your present idle
    speed and when you tap on the gas the idle disappears because the
    recriprocity increases to the point that the engine is "smoothing" out.
    IMHO the dealer is BSing you about the cooling fan kicking on (does it
    do this when cold prior to the engine reaching operating temp?) and
    increasing the coolant flow - this should not cause a vibration unless
    the fan is out of balance. The cooling fan is cycling on and off only
    for an engine to be maintain optimum temperature to be most efficient,
    so although technically the dealer is correct he is still sort of
    feeding you a line.

    I believe there is a throttle stop screw that could be turned in/out to
    vary the idle and thus eliminate your vibration. HT cold probably
    confirm or correct me on this. What is your idle speed now according to
    your tach?
     
    jp103, May 14, 2008
    #9
  10. Tracie

    Tracie Guest

    JP

    It does NOT have this vibration problem when the engine is cold. Only
    after driving it for about 1/2 hour. I don't know what the idle speed
    is, but at a complete stop, the RPM's are around 550-600.

    Your description makes MUCH more sense to me than the dealerships.
    THANKS.
     
    Tracie, May 21, 2008
    #10
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