NHTSA Complaint #10191164 — 1999 HYUNDAI SONATA GLS

THE ENGINE WILL INTERMITTENTLY RACE INCREASING RPMS WITHOUT NOTICE, VERY DANGEROUS. IT HAPPENED WHILE SITTING AT A RED LIGHT. IF MY FOOT WAS NOT PUSHED DOWN ON THE BRAKE I WOULD HAVE HIT THE CAR IN FRONT, IT WILL ALSO OCCUR WHILE IN PARK WITH THE ENGINE RPMS GOING UP TO 3200 AND DOWN TO 1500 LIKE IT WAS A HUNT LASTING SEVERAL MINUTES. IT WILL STOP ,BUT I CAN'T FIGURE OUT HOW OR WHY. IT SEEMS TO BE WORSE WHEN DRIVING AT SUSTAINED HIGHER SPEEDS ON INTERSTATE, THEN GETTING OFF THE EXIT. I DO NOTICE THAT WHEN I ACCELERATE AWAY FROM A LIGHT WHILE THE PRMS ARE HIGH THE ENGINE ALMOST CUTS OFF THEN PICKS UP IN A JERKING MOTION. IF I TURN OFF THE ENGINE WHILE THE RPMS ARE HIGH RACING I AM NOT ABLE TO RESTART FOR A WHILE. I SMELL GAS, FLOODING I ASSUME. THE REPAIR SHOP HAS NOT BEEN ABLE TO CORRECT IT SINCE IT DOES NOT HAPPEN WHILE IN THEIR HANDS. *AK