On the 2.7L V6 and 2.4L 4 Cylinder, a defective exhaust gas recirculation (EGR) switching valve may cause an intermittent rough or unstable idle engine.
Resources for the Repair and Maintenance of your 2003 Hyundai Sonata
2003 Hyundai Sonata
2003 Hyundai Sonata Problems
Concerned about safety, the NHTSA is investigating reports of rust forming at the front suspension mounting points, the frame, and the sub-frame. Some of these vehicles may have been recalled for this issue. For more information, please click here»
Premature timing belt failure may result in serious engine damage. When replacing a broken timing belt, it is important to inspect and possibly replace the crankshaft position sensor; it is often damaged when the timing belt breaks.
If the alternator fails, it should be replaced with an improved design which is better able to replenish electrical power to the battery. The new alternator requires a different diameter drive belt.
2003 Hyundai Sonata Recalls (Recent)
Summary: HYUNDAI IS RECALLING 82 MODEL YEAR 2002-2003 SONATA VEHICLES. REPEATED USE OF THE INTERIOR DOOR HANDLE MAY CAUSE WEAR OF THE CHROME PLATING. IF THE TOP EDGE OF THE HANDLE HAS VERY THIN CHROME PLATING THAT PORTION OF THE PLATING MAY WEAR AWAY MORE EASILY THAN MORE THICKLY PLATED AREAS AS THE DOOR HANDLE IS USED. THE WORN CHROME PLATING ON THE UPPER EDGE OF THE HANDLE MAY RESULT IN A CRACK OR SEPARATION BETWEEN THE CHROME PLATING ON THE INBOARD AND OUTBOARD SURFACES OF THE HANDLE, WHICH MAY FORM A SHARP EDGE.Learn more »
Summary: HYUNDAI IS RECALLING 91,350 MY 2002-2003 HYUNDAI SONATA VEHICLES. REPEATED USE OF THE INTERIOR DOOR HANDLE MAY CAUSE WEAR OF THE CHROME PLATE. IF THE TOP EDGE OF THE HANDLE HAS VERY THIN CHROME PLATING, THAT PORTION OF THE PLATING MAY WEAR AWAY MORE EASILY THAN MORE THICKLY PLATED AREAS AS THE DOOR HANDLE IS USED. THE WORN CHROME PLATING ON THE UPPER EDGE OF THE HANDLE MAY RESULT IN A CRACK OR SEPARATION BETWEEN THE CHROME PLATING ON THE INBOARD AND OUTBOARD SURFACES OF THE HANDLE, WHICH MAY FORM A SHARP EDGE.Learn more »
Summary: ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH A TRACTION CONTROL SYSTEM (TCS), IF THE T125/70D-15 COMPACT SPARE TIRE IS INSTALLED ON A FRONT WHEEL POSITION, THE TCS MAY INADVERTENTLY ACTIVATE BEGINNING AT SPEEDS OF 20 MPH.Learn more »
Summary: CERTAIN PASSENGER VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 301, "FUEL SYSTEM INTEGRITY" A VALVE ON THE FUEL TANK ASSEMBLY MAY NOT CLOSE PROPERLY. IF A VEHICLE ROLLS OVER AND THE FUEL TANK ASSEMBLY VALVE IS NOT PROPERLY CLOSED, FUEL SPILLAGE MAY OCCUR.Learn more »
2003 Hyundai Sonata Questions and Answers
refering to my timing belt, the car has 77,000 miles on it. Should I replace the timing belt now or wait for it to fail?
Thank you, Ray
I have a 2003 Sonata with about 97K miles. Have started to see the battery charge warning light "flicker" occasionally. Battery test good as does the alternator. Alternator and battery...
The nut that attaches the motor to the wipers fell off, how do I get the wipers back to the correct rest position, I know on some cars their me be a metal tab that gets bent any clues?
My battery light came on about a week ago, so we replaced the battery. After we put the battery in it was fine then the battery light came on again. Then it went off. Now is goes on and off. What w...
2003 Hyundai Sonata Reviews
I bought my 2003 Hyundai Sonata new, and now at 102,000 miles, it still runs like a top. I haven't had any major repairs on it. The only issues are that about 4" of paint have chipped off on the hood, and the interior chrome is chipping as well. Mechanically, it is the most reliable car I've ever owned.
good car air dont work tho suckes
This car is comfortable, peppy, and fun to drive. I love the side shift option and the fact that it is pretty good on gas. I own the 2003, 4 Cylinder model and it has been extremely reliable. I replaced the timing belt at around 85,000 miles and I just replaced the spark plugs today. I intend to keep this car for a long time to come. It is stylish and sporty, and I love it!
The vehicle is a good value and fairly low maintenance. You might need to have the timing belt replaced if the car is around 80k miles.