I wish I could remember how my car idled when I purchased it but I’m pretty sure it wasn’t this rough. I have a 2015 Elantra Sport and at idle there’s a distinct vibration that’s hurting me. I had the spark plugs changed, and it helped the drive but the idle is still unsteady. Can anyone help?
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If the idle speed is correct, clean the throttle body or check to see if it is clogged with deposits.
New spark plugs are a great start, but that persistent idle vibration is a puzzle we need to crack.
It could be a few things: worn engine mounts (they cushion the engine, so worn ones can cause shakes), a dirty throttle body (restricting airflow), or possibly even a faulty coil pack.
These are common issues and easily fixable. Head to a trusted Hyundai mechanic for a proper diagnosis.