2009 Hyundai Sonata Powertrain & Transmission Problems

Passenger seat belt doesn’t click in. Miss fire Poor acceleration Exhaust leak Power lost Mechanic can’t find the problem Check engine light on

We purchased this vehicle used 9/2022. A week later it began to jump upon accelerating and slowing down. We took it in and they said it was the power train control module and our warranty would not cover it. So it would cost us around $1600. We can’t afford that. We have only driven it a few times since. We were parked in front of a curb and the car accelerated us into a curb. Now, the ESC OFF, ABS, and engine light are illuminated. This is not a. It also wear and tear issues, as I’ve seen many others posting similar experiences. Our car is an ‘09 with almost 90,000 miles on it.

TAKATA RECALL ON JULY 27, 28 2019 THE ESC LIGHT CAME ON INTERMITTENTLY CAUSING THE CAR TO STALL DRIVING SOUTH ON I 75 AND LATER ON THE STREETS. AFTER TURNING THE CAR OFF AND RESTARTING THE CAR IT DROVE ALONG OK. DURING OUR RETURN TRIP, THE CAR STALLED AGAIN DRIVING NORTH ON I 75 , AND WE PULLED TO THE SIDE OF THE ROAD ONLY SECONDS BEFORE A 18 WHEELER PASSED US WITHIN LESS THAN A FOOT BETWEEN US. ALL FIVE US COULD HAVE BEEN KILLED. WE WERE LUCKY TO FIND A NATIONAL REPAIR SHOP OPENED ON A SUNDAY WHO DIAGNOSED THE PROBLEM AS A FAULTY CRANKSHAFT POSITION SENSOR( THE CAR HAS 54,000 MILES ) . THE PART WAS REPLACED AND AFTER 4 HOURS WE WERE ON OUR WAY, MINUS $400 PLUS DOLLARS. RESEARCH INDICATES THAT THIS CONTINUES TO BE AN UNSAFE AND POTENTIALLY DEADLY PROBLEM -THAT THIS SENSOR MUST BE RECALLED- AND THE PUBLIC MADE AWARE OF THE DANGER.

MY CAR DRIVES WHEN PUT IN DRIVE BUT WOULD NOT MOVE WHEN PUT IN REVERSE. I NOTICED THIS WHEN I CAME OUT OF A SHOP I VISITED AND TRIED TO BACK UP THE CAR.

AS I WAS DRIVING UP A HILL IN A RESIDENTIAL NEIGHBORHOOD, THE ENGINE STARTED MAKING EXTREMELY LOUD NOISES AND IT WOULD NO LONGER RESPOND TO THE ACCELERATOR. THIS WAS ON A NARROW TWO WAY STREET. I HAD IT TOWED TO THE LOCAL HYUNDAI DEALER WHO SAID IT NEEDS A USED MOTOR PUT IN IT FOR $4600 AS IT HAS "AN INTERNAL ENGINE PROBLEM" WITHOUT GOING IN TO SPECIFICS. ENGINE HAD 97,000 MILES AND CAR WAS WELL-MAINTAINED.

I BOUGHT THE USED CAR IN THE SPRING, IT CURRENTLY HAS 44,000 MILES ON IT. WHEN THE WEATHER GOT COLD, IT BEGAN TO JERK VIOLENTLY AT 20 MPH WHEN I DECELERATE. WHEN I SLOW THE VEHICLE IT FEELS AS IF SOMEONE HAS HIT ME FROM BEHIND. WHEN MAKING RIGHT HAND TURNS I AM CONCERNED THAT THE CAR WILL SWITCH GEARS AND LURCH ME INTO ONCOMING TRAFFIC. ITEMS ON MY SEAT THAT ARE NOT SECURE ARE PROPELLED TO THE FLOOR. I WILL NOT LET ANYONE ELSE OPERATE THE VEHICLE BECAUSE I FEEL THAT IT WOULD BE VERY EASY TO LOSE CONTROL OF THE VEHICLE DURING THE DECELERATION. I CONTACTED HYUNDAI CORPORATION- MISTAKENLY TOLD ME IT WAS UNDER WARRANTY AND THEN RECANTED WHEN THEY REALIZED I WAS A SECOND OWNER WHICH ONLY COVERS 5 YEARS OR 60,000. HYUNDAI REPRESENTATIVE STATES THAT THIS IS NOT A SAFETY ISSUE, THAT THERE ARE NO TECHNICAL BULLETINS APPLYING TO MY AUTOMOBILE. REFUSES TO FIX IT FREE OF CHARGE DESPITE THERE BEING COUNTLESS OTHER COMPLAINTS OF THE SAME NATURE ON THE NHTSA SITE.

JERKING WHEN BRAKEING TO STOP OR WHEN SLOWING TO MAKE A TURN. TAKENSEVERAL TIMES FOR SERVICE BUT UNABLE TO DUPLICATE THE PROBLEM, NO EGINE LIGT HAS COME ON THEREFORE THEY CAN NOT REPAIR. PLEASE WE NEED YOUR HELP.

MY CAR GEAR SHIFT LOCKS UP. I CANNOT CHANGE GEARS FROM PARK TO GO IN REVERSE OR DRIVE. I HAVE TO UTILIZE THE MANUAL GEAR SHIFT OVERRIDE EVERY TIME I NEED TO CHANGE GEARS. THE CAR WILL BE STATIONARY AND I MUST KEEP MY FEET ON THE BRAKES AT ALL TIMES AS I FEAR IT MAY SHIFT ON ITS OWN. IT IS A CONTINUOUS PROBLEM THAT BEGAN 3 WEEKS AGO.

ENGINE OIL LEAKS SINCE 2 YEARS AGO

TL* THE CONTACT OWNS A 2009 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING AT 10 MPH, THE BRAKE PEDAL WAS DEPRESSED AND A GRINDING NOISE EMITTED AS THE ESC WARNING LIGHT ILLUMINATED. THE FAILURE RECURRED NUMEROUS TIMES. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 13V113000 (EXTERIOR LIGHTING SERVICE BRAKES, HYDRAULIC ). ON A SEPARATE OCCASION, THE GEAR LEVER FAILED TO SHIFT OUT OF PARK UNTIL AFTER SEVERAL ATTEMPTS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 20,000. THE VIN WAS NOT AVAILABLE.

WHILE DRIVING THE CAR AT A RATE OF 30 TO 40 MPH, I FELT A JERK IN THE ENGINE OR TRANSMISSION SPEED OF MY VEHICLE, AND AFTERWORDS NOTICED MY ESC OFF LIGHT AND ENGINE LIGHTS HAD BEEN ILLUMINATED AND UNABLE TO BE SHUT OFF WITH MY ESC SWITCH. I ALSO NOTICED THAT I WAS UNABLE TO REV MY ENGINE PAST 3000RPM'S, CONSEQUENTLY AFFECTING MY VEHICLE'S USABLE POWER BAND AND RENDERING ME(THE DRIVER) UNABLE TO CONTROL THE CAR'S OVERALL SPEED. AFTER TURNING MY VEHICLE OFF AND THEN BACK ON, THE PROBLEM WOULD GO AWAY, BUT ONLY TEMPORARILY UNTIL I WAS AGAIN DRIVING. I THEN WENT TO A MECHANIC TO HAVE MY CAR'S COMPUTER SCANNED AND FOUND THAT THERE WAS A PROBLEM WITH MY CRANKSHAFT OR CRANKSHAFT SENSOR. MY COMPUTER WAS THEN RESET, BUT THE PROBLEMS PERSISTED AGAIN SHORTLY AFTER.

THERE IS A TRANSMISSION PROBLEM WITH HYUNDAI SONATA 2009, ANYTIME THE CAR IS ACCELERATED THE TRANSMISSION BOX GETS STUCK WHICH COULD LEAD TO SAFETY HAZARDS.

MY CAR JERKS DURING BRAKING OR DOWNSHIFTING AROUND 15-20 MILE PER HOUR. IT ONLY DOES THIS AFTER CAR HAS SAT FOR A PERIOD OF TIME AND STOPS AFTER ENGINE WARMS UP AND HAS BEEN DRIVEN FOR ABOUT 20 MINUTES. MY SONATA IS AUTOMATIC.

1.ON THIS VEHICLE THE SERPENTINE BELT INSTALL IS A NIGHTMARE. IT IS A DEFECT IN DESIGN. IT IS A FIXED PULLEY FOR TENSION AND YOUR HAVING TO STRETCH WITH TOOLS AND WAIT UNTIL IT LOOSENS UP. 2. THE ORIGINAL PAN GASKET RTV SEAL WAS BLACK . IT WAS EXTREMELY HARD TO TAKE OFF AND IT CAUSED SOME DAMAGE TO THE BLOCK AS FAR AS DENTS ON THE MATING SURFACES. THE OIL PAN WAS BENT TO REMOVE. 3. NOISES FROM THE POWER TRAIN THAT WERE LOOKED AT BY A HYUNDAI SERVICE CENTER AND NEVER CORRECTED. *TR

DEPRESSED CLUTCH STAYED ON THE FLOOR. PRIED IT UP WITH MY FOOT, IT THEN WORKED. OTHER TIMES THE CLUTCH WOULD NOT RETURN FULLY MAKING IT IMPOSSIBLE TO SHIFT GEARS. PUMPING THE CLUTCH SEEMED TO HELP. *TR

THE FRONT VALVE COVER GASKET LEAKED OIL DOWN TO MY ALTERNATOR, CAUSING IT TO MALFUNCTION AND MAKING MY TRANSMISSION SHIFT AWKWARDLY.

WHILE SLOWING DOWN THE CAR BUCKS OR JERKS THE DRIVER FORWARD UNDER 20MPH. I BROUGHT IT INTO HYUNDAI TO CHECK OUT IN JUNE. THEY SAID THAT THEY WOULD RESET THE COMPUTER AND THAT SHOULD ADDRESS THE PROBLEM. AFTER THAT, IT MADE THE PROBLEM WORSE. *TR

HEARD SQUEALING AND HOWLING FROM THE REAR DRIVER SIDE. TOOK TO DEALERSHIP AND WAS TOLD THAT THE BRAKES HUNG UP AND I NEEDED TO REPLACE BRAKES AND ROTOR ($189.00). I WAS TOLD THAT THIS IS A MAINTENANCE ISSUE AND NOTHING WAS COVERED UNDER WARRANTY. I PURCHASED THE ITEMS AND WHEN THEY WERE GOING TO BE REPLACED WE DISCOVERED THE DUST BOOT WAS PULLED OUT OF THE CALIPER (WHICH WOULD HAVE BEEN COVERED UNDER WARRANTY) I CONTACTED THE DEALER AND WAS TOLD THAT EVERY 7000 MILES THE CALIPERS WOULD NEED REBUILT. I'VE BEEN DRIVING AND GREW UP AROUND GARAGES AND NEVER HEARD OF SUCH A THING! *TR

I HAD TO REPLACE THE REAR BRAKE PADS AND ROTORS. THE ROTORS WERE WARPED FROM THE PADS CONSTANTLY RUBBING ON THEM. CLEARLY THERE IS A PROBLEM HERE WITH THE NUMBER OF COMPLAINTS I SEE. MY MECHANIC COULD NOT BELIEVE THE DAMAGE DONE TO THE ROTORS AND TOLD ME THE FRONT BRAKES USUALLY WEAR FIRST. I HAVE ALSO HAD THE VEHICLE IN TWICE FOR THE ROUGH DONE SHIFTING THAT OCCURS WHEN THE VEHICLE IS COLD. THE DEALERSHIP REPROGRAMMED THE TRANSMISSION BOTH TIMES BUT THAT DID NOT SOLVE THE PROBLEM. I ALSO HAD A PROBLEM WITH THE ESC LIGHT STAYING ON BUT THE DEALERSHIP REPLACED THE REAR WHEEL SPEED SENSOR. *TR

NOTICED THE CAR DOES NOT PULL UP THE STEEP HILL VERY WELL. TOOK TO DEALER WHO SAID TRANSMISSION OIL IS DIRTY AND SMELLS BAD AND IT NEEDS TRANSMISSION FLUSH, RESETTING OF TRANSMISSION SHIFT POINTS, AND FUEL SYSTEM CLEAN . I POINTED OUT THESE ARE NOT PER SCHEDULED MAINTENANCE REQUIREMENT AND WAS CONCERNED THE CAR WAS CAUSING THESE PROBLEMS SO EARLY IN ITS USAGE . WILL TAKE IT FOR THE TRANSMISSION FLUSH AS THAT IS WHAT DEALER INSISTS ON BEFORE THEY INFORM ME IF THERE IS A SAFETY ISSUE PRESENT. *TR