Questionmy 2003 tiburon 2.0 4 cy , while driving the car bucks and the check engion light and the key light flash whats wrong with my car ???
AnswerAnytime the check engine lamp is flashing, that indicates a misfire bad enough to damage the catalytic converter. If you haven't yet damaged the converter, continuing to drive the car without repair will do so.
Most misfires are caused by faulty secondary ignition components (spark plugs, plug wires, and ignition coil), so I'd recommend checking them for proper function.
