2013 CHEVROLET SONIC Engine Problems

WHEN CAR IS STOPPED, IT BEGINS TO MAKE A RATTLING NOISE, AT TIMES IT CAN BE QUITE LOUD, IT ALSO STARTS TO VIBRATE AND ALMOST CUT OFF. THE NOISE SOUNDS AS IF IT IS COMING FROM THE ENGINE. THE NOISE HAS BEEN SPORADIC. I TOOK THE CAR INTO THE DEALER AND THEY COULD NOT FIND ANYTHING WRONG. THIS IS QUITE CONCERNING. *TR

JAN.7/2013 HEARD SUTTLE/SCRAPING/RATTLE SOUNDS, THOUGHT I ROLLED OVER SOMETHING ON DARK ROAD IN CONSTRUCTION ZONE. MOVED MY CAR TO LEFT THEN REALLY SCRAPED ON SOMETHING. BY NEXT MORNING SOME OIL LEAKED OUT. HAD CAR TOWED TO G.M. DEALER. THEY HAD MAIN ENGINEERS TRYING TO FIGURE OUT WHAT WAS CAUSING OIL TO SPREAD IN ENGINE &SONIC WAS INSANELY SMOKING BLACK SMOKE IN, AROUND.LIKE IN BLACK CLOUD WITH SPARKS COMING OUT BACK OF CAR. I GOT TERRIFIED, AS I HAD JUST PICKED IT UP,WAS TOLD THEY HAD FIXED THE OIL LEAKS. DEALER STILL HAS CAR. 3/3/13 THEY TOLD ME IT WAS FIXED, BUT IT REEKED WITH TOXIC FUMES, I BECAME NAUSEOUS, THROAT WAS SCRATCHING LIKE BEFORE. TOLD GM THAT SONIC WAS NOT FIXED. REQUESTED NEW CAR FROM THEM. THEY ARE OFFERING ME A REPURCHASE. I DON'T KNOW WHAT THAT MEANS. THEY HAVE REFUSED TO EXTEND MY RENTAL TO TRANSPORT MY FAMILY OF...

THE A/C DOES NOT WORK GOOD WHILE THE CAR IS AT IDLE. WHEN DRIVING THE CAR THE A/C WILL BEGIN TO COOL. WHEN DRIVING ON THE HIGHWAY AND I HAVE TO BREAK IT STARTS TO BLOW WARMER AIR. WHEN STOPPED AT A RED LIGHT, STOP SIGN, THE A/C WILL STOP COOLING AND BLOWS WARM AIR OUT OF THE VENTS. I WENT TO THE DEALERSHIP AND DO NOT KNOW HOW TO FIX THE PROBLEM. TOLD ME THAT THE MECHANIC/TECHNICIAN COULD NOT FIND ANYTHING WRONG. THE DEALERSHIP IS NO HELP AND I JUST WANT MY 17000 CAR AC TO WORK NORMAL/ RIGHT. 2013 CHEVY SONIC 2LT MODEL WITH A 6 SPEED AUTO TRANSMISSION. PLEASE HELP THANKS! *TR

2013 CHEVY SONIC LOUD VIBRATION NOISE FROM ENGINE BAY AREA WHEN VEHICLE IS PARKED OR IN THE DRIVE POSITION WHEN STOPPED, IT ALSO OCCURS WITH OR WITHOUT A HEAVY LOAD (MEANING RADIO ON/OFF, AC ON/OFF). AS A CONSUMER I WAS TOLD THIS IS NORMAL OPERATION, NORMAL OPERATION WOULD MEAN EITHER AT THE TIME OF PURCHASE OR SOMETHING THAT ARISES AFTER HIGH MILEAGE ON THE AUTO. PER TECH NOTES "CASE [XXX], ADVISED A NORMAL OPERATING CHARACTERISTIC OF 4 CYLINDER ENGINE. COMPARED TO SIMILAR VEHICLE MADE THE SAME SOUND. WAS ABLE TO DEADEN NOISE BY APPLYING PRESSURE TO FRONT BUMPER.*** - TECH COMMENTS: NORMAL OPERATING CHARACTERISTIC - INTERNAL" INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

THIS CONDITION HAPPENS DURING FIRST DRIVE OF THE DAY OR AFTER THE VEHICLE SITS FOR A WHILE. WHILE ACCELERATING THROUGH THE AUTOMATIC TRANSMISSION THE CAR SURGES/JOLTS AT OR NEAR THE SHIFT POINTS. IT ALMOST FEELS AS IF I STARTED MOVING THE VEHICLE IN THE WRONG GEAR, IF IT WERE A MANUAL TRANSMISSION. THIS CONDITION ALSO EXISTS IF YOU START MOVING THE VEHICLE FORWARD AND THEN REMOVE YOUR FOOT FROM THE ACCELERATOR PEDAL AND COAST. THIS VEHICLE IS THE RS MODEL EQUIPED WITH THE 1.4 LITER TURBO. *TR