NHTSA Complaint #10372755 — 2009 CHEVROLET AVEO

VEHICLE LOST POWER TO THE ENGINE. STEPPING ON THE GAS PEDAL DID NOTHING. THE CAR LURCHED AND DECELERATED QUICKLY. POWER WAS SUDDENLY RESTORED TO ENGINE CAUSING THE CAR TO SPEED UP QUICKLY, THEN ENGINE LOST POWER AGAIN. CAR CAME TO A STOP, ENGINE SPUTTERED AND THEN DIED. NO WARNING LIGHTS CAME ON. RESTARTED ENGINE, CAR DROVE AS NORMAL. TOOK TO DEALERSHIP, THEY COULD FIND NOTHING WRONG. PROBLEM HAS CONTINUED INTERMITTENTLY FOR ALMOST A YEAR. HAVE TAKEN THE CAR TO THE DEALERSHIP MULTIPLE TIMES, THEY CAN FIND NOTHING WRONG. THE SUDDEN DECELERATION HAS OCCURRED AT ALL SPEEDS, INCLUDING ON THE FREEWAY ALMOST CAUSING A COLLISION. THE CAR WENT FROM 70MPH TO 40MPH IN ONE MINUTE, SPUTTERED FOR A WHILE, AND THEN CAME BACK TO DRIVE NORMALLY AFTER SEVERAL MINUTES. THE PROBLEM HAPPENS WITHIN THE FIRST TEN MINUTES OF DRIVING. IT HAS HAPPENED TWICE IN THE SAME DAY AFTER THE CAR SAT FOR 8 HOURS. THE PROBLEM HAS NOT OCCURRED FOR PERIODS AS LONG AS TWO WEEKS BUT THEN COMES BACK. THE MOST EXTREME OCCURRENCES HAVE BEEN ON SIDE STREETS WHERE TRAFFIC WAS NOT A PROBLEM, BUT IF ANOTHER CAR HAD BEEN FOLLOWING CLOSELY A REAR-END COLLISION WOULD HAVE BEEN CERTAIN. MY SPOUSE HAS DRIVEN THE CAR AND EXPERIENCED THE SAME PROBLEM.