EVER SINCE BOUGHT NEW (SORENTO SX 6CYL.) IN APRIL 2011, THERE HAS BEEN A INTERMITTANT ISSUE WITH NO ENGINE RESPONSE FROM STOP FOR 2-3 SECONDS. RPM'S STAY AT IDLE SPEED, THEN IT SUDDENLY TAKES HOLD AND RUNS FINE. ONLY HAPPENS FROM STOP, AND ONLY ABOUT ONCE OR TWICE EVERY 2-3 DAYS. DEALER CANNOT DUPLICATE PROBLEM, NO CODES. DANGEROUS SITUATION WHEN PULLING OUT INTO TRAFFIC FROM A STOP. I CANNOT DUPLICATE IT UNDER ANY DRIVING CIRCUMSTANCES. ALSO, IF I APPLY BRAKE DURING THIS "HESITATION" THERE IS NO ENGINE ACCELERATION WHILE I HOLD THE BRAKE. I FEEL SURE IT IS IN THE "FLY BY WIRE" SYSTEM, BUT DEALER HAS NO CLUE. I HAVE TO "FEATHER" THE ACCELERATOR FROM STOP WHENEVER I AM CONCERNED ABOUT ONCOMING TRAFFIC. *TT