RoadVitals

2003 Hyundai Sonata Engine Problems

Owner-reported complaints naming the engine system, filed with NHTSA

Data refreshed

Engine reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
17
Latest Feb 17, 2021
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
9%
of 199 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
1
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
1

What this page shows

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2003 Hyundai Sonata submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 17 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming engine

Shown in the owner’s own words, exactly as filed

Engine
Filed Feb 17, 2021

TL* THE CONTACT OWNS A 2003 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 25 MPH, WHEN THE VEHICLE LOSS MOTIVE POWER AND STALLED. THE CONTACT PUSHED THE VEHICLE TO THE SIDE OF THE ROADWAY. THE CONTACT HAD THE VEHICLE TOWED TO A CERTIFIED MECHANIC WHO DIAGNOSED THAT CRANKSHAFT POSITION SENSOR AND THE CRANKSHAFT NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 45,922. THE VIN WAS NOT AVAILABLE.*DT*JB

NHTSA ID
11396614
Incident
May 26, 2019
Mileage
45,922 mi
Engine
Filed Dec 5, 2017

TL* THE CONTACT OWNS A 2003 HYUNDAI SONATA. THE CONTACT STATED THAT THE VEHICLE FAILED TO START WHEN ATTEMPTED TO DRIVE. THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE FAILURE RECURRED ONCE. THE VEHICLE WAS TAKEN TO POTAMKIN HYUNDAI (6200 NW 167TH ST, MIAMI LAKES, FL 33014, PHONE: (305) 728-5030), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 139,000.

NHTSA ID
11052497
Incident
Nov 23, 2017
Mileage
139,000 mi
Body & structureEngine
Filed Aug 4, 2014

TL* THE CONTACT OWNS A 2003 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE INSPECTING THE VEHICLE, THE FRONT WHEELS APPEARED TO BE ANGLED INWARD. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO DISCOVERED THAT THE FRONT PASSENGER SIDE OF THE ENGINE CRADLE WAS RUSTED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 131,000.

NHTSA ID
10618738
Incident
Jul 21, 2014
Mileage
131,000 mi
Engine
Filed Jun 15, 2011

TL*THE CONTACT OWNS A 2003 HYUNDAI SONATA GLS. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 65 MPH THE VEHICLE STALLED, BUT THE VEHICLE CONTINUED TO SURGE FORWARD. THE VEHICLE WAS TOWED TO A DEALER WHO ADVISED HER THAT THEY WOULD REPROGRAM THE COMPUTERS. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS APPROXIMATELY 80,000.

NHTSA ID
10406993
Incident
Jun 7, 2011
Mileage
80,000 mi
Engine
Filed Feb 21, 2011

2003 HYUNDAI SONATA EGR ISSUES (CHECK ENGINE LIGHT 401)- I'VE BEEN HAVING PERSISTENT ISSUES WITH MY VEHICLE'S EGR SYSTEM FOR OVER A YEAR NOW. I HAVE REPLACED THE ENTIRE EGR SYSTEM INCLUDING THE EGR VALVE, SOLENOID, ETC. I HAVE ALSO HAD TO REPLACE OTHER PARTS THAT HAVE FAILED DUE TO THE MALFUNCTIONING EGR - IGNITION COILS, SPARK PLUGS. EVEN AFTER REPLACING ALL THESE PARTS, MY VEHICLE STILL COMPLAINS ABOUT THE EGR WITH CHECK ENGINE LIGHT CONSTANTLY ON (401). I HAVE ALSO BEEN GETTING VERY POOR MILEAGE. I CONTACTED HYUNDAI ABOUT A TSB THEY SENT OUT TO DEALERS FOR EGR DIAGNOSIS. HYUNDAI DENIED ASSISTANCE WITH THIS ISSUE AND ASKED ME TO CONTACT THE DEALERSHIP DIRECTLY. THE DEALER WANTS TO CHARGE ME A DIAGNOSTIC FEE TO LOOK INTO THE ISSUE + FEES FOR PARTS. SEARCHING ON THE INTERNET, I FOUND SEVERAL CASES OF EGR MALFUNCTIONING WITH 2003 MODELS. HYUNDAI NEEDS TO LOOK INTO THIS. *TR

NHTSA ID
10383907
Incident
Feb 21, 2011
Mileage
85,000 mi
Engine
Filed Aug 10, 2009

WHILE DRIVING CAR JUST STOPS. IT HAS DONE THIS SEVERAL TIMES BUT STARTS BACK UP ONCE YOU PUT IN PARK. HOWEVER THIS TIME IT STOP WHILE DRIVING AND DID NOT START BACK UP. THE FIRST IT HAPPEN I TOOK IT TO THE SHOP AND THEY SAID THEY COULD NOT FIND ANYTHING WRONG. EVEN THOUGH THE "CHECK ENGINE" LIGHT WAS ON. NOW IT WILL NOT START AT ALL. *TR

NHTSA ID
10279872
Incident
Aug 8, 2009
Mileage
90,000 mi
AirbagsEngine
Filed Jan 8, 2009

SEVERAL ISSUES WITH THE VEHICLE, AIRBAG HAS HAD SEVERAL PROBLEMS, NEVER DEPLOYED WHEN IN ACCIDENT, FIRST ISSUE WAS COVERED UNDER WARRANTY, SAID THEY HAD TO REWIRE IT, A FEW MONTHS LATER LIGHT COME ON AGAIN. THIS TIME THEY TELL ME THE CIRCUIT MOTHERBOARD HAS CRASHED, COMPLETELY DISABLING THE AIRBAG. SECOND INCIDENT WAS WITH ALTERNATOR, LIGHT CONTINUED COMING ON, DEALERSHIP SAID NOTHING WAS WRONG WITH CAR. CAR EVENTUALLY BROKE DOWN IN TRAFFIC, ALTERNATOR HAD WENT OUT COMPLETELY AND IT WAS ONLY A FEW DAYS AFTER THE WARRANTY EXPIRED. I WAS FORCED TO COME OUT THE POCKET, NOW THERE ARE ISSUES WITH THE ENGINE. THE SHAFT POSITION SENSOR HAS FAILED AND MY CAR BROKE DOWN ON THE INTERSTATE. THERE HAVE BEEN SEVERAL ISSUES WITH MY CAR, AND I USE IT FOR TRANSPORTATION FROM SCHOOL AND WORK LOCALLY. *TR

NHTSA ID
10254224
Incident
Jan 8, 2008
Mileage
60,000 mi
Engine
Filed Aug 31, 2007

WHILE DRIVING, UNDER MANY DIFFERENT CONDITIONS, MY HYUNDAI SONATA STALLS. IT HAS HAPPENED OVER A DOZEN TIMES. AFTER PULLING OVER TO THE SIDE OF THE ROAD, I LET THE CAR SIT FOR A WHILE AND IT STARTS RIGHT BACK UP AGAIN. OCCASIONALLY I HAVE TO HAVE IT TOWED. IT DOES NOT SEEM TO OCCUR WHILE THE CAR HAS CRUISE CONTROL ON, EVEN WITHOUT IT BEING ENGAGED, JUST POWERED ON. *TR

NHTSA ID
10201307
Incident
May 1, 2007
AirbagsBrakesDriver assistance+3 more
Filed Jun 9, 2005
Crash reported1 injury reported

THE CONSUMER'S HYUNDAI SONATA DEVELOPED THE FOLLOWING PROBLEMS: THE PAINT WAS PEELING, THE SUN ROOF WAS BROKEN, THE PASSENGER SIDE WINDOW WAS INOPERATIVE, THE BRAKES FAILED, THE SEATBELT BROKE, THE ENGINE BLEW UP AND THE AIR BAGS FAILED TO DEPLOY. *MR THE ENGINE SURGED. AS A RESULT OF THE ENGINE BLOWING, THE RIGHT SIDE DISINTEGRATED. *SC *JB

NHTSA ID
10125845
Incident
Mar 8, 2004
Engine
Filed Aug 7, 2004

THIS CAR PRESENTS WITH A LOUD CLICKING SOUND WHICH IS VERY DISTRESSING.ONCE IT BEGINS IT LASTS FOR SEVERAL MINUTES SOUNDING FOR LONG PERIODS AND AT TIMES SHORT BURSTS. I HAVE TAKEN IT TO THE DEALER TWICE AND THE PROBLEM HAS BEEN NEITHER IDENTIFIED OR RECTIFIED. UNTIL LAST NIGHT I HAVE BEEN ALONE IN THE CAR WHEN THIS SOUND PRESENTS. LAST NIGHT WHEN IT PRESENTED THERE WERE PASSENGERS PRESENT. ALTHOUGH THE CAR DID NOT FALTER IT WAS NONE THE LESS VERY DISTRESSING FOR MY PASSENGERS AND ME. WE TURNED OFF OUR CELL PHONES AND SHUT OFF THE RADIO TO NO AVAIL. WITH NO RESOLUTION OR INFORMATION AS TO WHAT IS THE CAUSE I AM LEFT WONDERING IF I AM DRIVING TOWARDS SOME MALFUNCTION. THIS CLICKING SOUND ALWAYS PRESENTS WHILE DRIVING ON FREEWAYS AT FREEWAY SPEED.*AK

NHTSA ID
10086379
Incident
Aug 7, 2004
Mileage
32,300 mi
Engine
Filed May 13, 2004

STOPPED AT RED LIGHT, WHEN TIME TO GO, ENGINE STALLED. ATTEMPTED TO RESTART UNSUCESSFULLY. A/C WAS NOT RUNNING. CAR WAS ABLE TO START AFTER 30 MINUTES. CAR WAS TOWED TO DEALERSHIP. DEALERSHIP WAS UNABLE TO DUBLICATE PROBLEM AFTER 15 MILES.*AK

NHTSA ID
10072587
Incident
May 13, 2004
Mileage
6,104 mi
Engine
Filed Jan 24, 2004

THE ENGINE DOES RELIABLY ACCELERATE WHEN THE ACCELERATOR PEDAL IS PRESSED. SOMETIMES THERE IS UP TO A 3 SECOND DELAY BEFORE THE ENGINE RESPONDS TO COMMANDS FROM THE ACCELERATOR PEDAL. AT TIMES THE ENGINE ALSO ACCELERATES VERY SLUGGISHLY COMPARED TO OTHER 2003 4-CYLINDER. HYUNDAI SONATAS THAT HAVE BEEN TESTED. HYUNDAI HASN'T CORRECTED THIS PROBLEM DESPITE MANY ATTEMPTS. *LA

NHTSA ID
10054825
Incident
Apr 2, 2003
Mileage
3,000 mi
Engine
Filed Jan 13, 2004

ENGINE MISFIRING

NHTSA ID
10053108
Incident
Jan 9, 2004
Mileage
7,230 mi
Engine
Filed Aug 18, 2003

WHEN VEHICLE IS PARKED FOR OVER SIX HOURS , THEN UPON STARTING VEHICLE AND DRIVING, VEHICLE WOULD STALL .VEHICLE HAS BEEN TAKEN TO THE DEALER ON THREE OCCASIONS, BUT PROBLEM IS RECURRING.*AK

NHTSA ID
10034090
Incident
Mar 15, 2003
Engine
Filed Aug 7, 2003

WHILE TRAVELING ON THE HIGHWAY AND WITHOUT PRIOR WARNING, ESPECIALLY WHEN GOING UP HILLS, THE VEHICLE LOST POWER, IT HAPPENED AT LEAST 5 TIMES. THE DEALER STATED THERE WAS NO REPAIR AND TO MAKE SURE THE VEHICLE ALWAYS HAD A TANK OF GAS BEFORE GOING UP A HILL. *AK *CB *JB

NHTSA ID
10029661
Incident
Jul 18, 2003
Mileage
1,200 mi
Engine
Filed Aug 1, 2003

ENGINE CHECK LIGHT COMES ON WHEN DRIVING VEHICLE.*AK

NHTSA ID
10031875
Incident
Jun 15, 2003
Engine
Filed Dec 23, 2002

CONSUMER CALLED COMPLAINING ABOUT HAVING PROBLEMS WITH IDLE SPEED AND VEHICLE WILL STALL. ALSO STATED THAT WHILE DRIVING THE VEHICLE THE VEHICLE WILL START LOOSING POWER ON HIGHWAY SPEED. DEALER WAS CONTACTED AND STATED THAT THIS IS A INTERMEDIATE PROBLEM AND UNLESS HYUNDAI SENDS OUT A LETTER OR SOMETHING THAT STATES THE PROBLEM THEY CAN'T DO NOTHING ABOUT IT. TS

NHTSA ID
10001409
Mileage
2,500 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .