Transmission is shifting hard between second and third gear. on 2004 Hyundai Tiburon

Transmission jerks between second and third gear when accelorationing lightly If your giving it more rpm,s it doesn;t do it.

Asked by for the 2004 Hyundai Tiburon
Provided the transmisson fluid is up to level, clean and clear, you need to get a transmission specialist or a Hyundai specialist to diagnose it for you. Sounds to me, if the fluid's OK, that you may have a line pressure control problem and it needs to be diagnosed by a pro.
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