2004 elantra GT revving itself and stalling

Discussion in 'Hyundai Elantra / Lantra' started by FrankSwaney, May 4, 2006.

  1. FrankSwaney

    FrankSwaney Guest

    OK, about 80k on this car, and other than the notorius elantra
    headlight issues, this is the first problem i've had... It will rev
    itself, especially when I come to a complete stop, sometimes
    intermittently when at rest, anywhere from 1100 rpm all the way to 3000
    rpm-- a tap of the accelerator usually straightens it out...

    what does everyone think? O2 sensor? If so, how do I change it? I'm not
    an automotive idiot, just don't get under the hood of newer vehicles
    often (I have 3 ice cream trucks, all 70's era chevy panel trucks)---
    but I need to get the Hyundai running right, and want to do it as
    cheaply as possible...

    Thanks in advance folks.
     
    FrankSwaney, May 4, 2006
    #1
  2. It seems more likely that it's the throttle position sensor. It may also
    be a stickly throttle plate. Have you opened the throttle body and
    looked to see if there's any accumulation of oil on/around it? This can
    be caused by the crankcase gases coming from the PCV. If it's dirty, a
    little carburetor cleaner should take care of it.
     
    Brian Nystrom, May 4, 2006
    #2
  3. FrankSwaney

    FrankSwaney Guest

    It was the throttle plate... i made the mistake of not changing my own
    oil about 30k miles ago, went to a 15 min place, and the air filter was
    due for replacement, and pretty dirty, so I just let them throw it in
    (I know, overpaying for the easy stuff is fun sometimes though)--- but
    anyway, the genius didn't have the housing back on properly, so there
    was about a 1/4 in gap in the back, which I am assuming helped my
    throttle plate grow itself a nice black ring around the edges...

    a little throttle body cleaner and an old toothbrush later, it's
    running right again.

    Thanks for the suggestion.

    now my second question is why in gods name does my elantra blow
    headlights like that's its job? (no moisture, etc... it just seems to
    burn one out like clockwork about every 6 months)--- i've heard that my
    problem is not uncommon...just wondering if there was an easy fix...
     
    FrankSwaney, May 6, 2006
    #3
  4. The stock bulbs are not very durable and neither are standard
    replacement bulbs. I'm using Silverstars currently (ordered from an Ebay
    store for $25/pair) and they last a year or more. When my old Excel
    burned out bulbs regularly, I switched to PIAA bulbs that cost me
    ~$75/pair locally, but are probably available for less online. They
    lasted for several years and I eventually took them out before I sold
    the car. Unfortunately, they don't fit my Elantra. When my current set
    of Silverstars burns out, I'll be installing PIAA bulbs.
     
    Brian Nystrom, May 6, 2006
    #4
  5. FrankSwaney

    FrankSwaney Guest

    Belated thanks, been swamped with work... I almost sprung for
    silverstars, but I went with the mid grad sylvania bulbs instead...
    I'll go for the silver stars on my next (and sure to be soon) burn out.
     
    FrankSwaney, May 14, 2006
    #5
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