Have a 2003 sonata. Purchased it 4 months ago. I have 11500 miles on it. It's a v6 gl model. Went out to mall lastnight and while driving back home on the highway the car bucked twice. I've no notice since the first day I drove the car home new that when I press down on the accelerator the car seems to hesitate. In other words, the engine revs up but the car does not move much until about 2-3 seconds. When it does go while I am pressing down the acel pedal that it sounds like there is a fuel injection problem. Now whats the deal. I call the dealer, set up the appointment and are they going to charge me $$$ even though I have a warrenty. Anyone else with this problem. Newbie here. TY