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 Hyundai Sonata
Hyundai Sonata Models:
Hyundai Sonata Problems
If you experience excessive engine noise on startup (after the engine has been turned off for several hours) that lasts for more than five or six seconds, turn off the engine and check that the engine oil level is correct. If the oil level is correct, the noise may be caused by the timing chain tensioner. Hyundai has an improved tensioner to correct this problem.
Problems with the accelerator pedal position switch may cause the Check Engine Light to illuminate; an improved switch is available to fix this problem.
Prior to replacing the automatic transmission fluid (to improve shift quality), make sure that the transmission fluid level is correct. Also, make sure the computer that controls the transmission has the most up-to-date adaptive programming information. When servicing these transmissions be sure to use fluid approved by Hyundai.
Parking lights not turning off intermittently or all the time. The common problem is with the cabin fuse box. Complete replacement of the assembly is necessary to fix the problem.
Hyundai Sonata Recalls (Recent)
Summary: THE WINDSHIELD WIPER MOTOR CIRCUIT BREAKER ELECTRICAL CONTACTS WERE CONTAMINATED DURING ASSEMBLY.Learn more »
Summary: VEHICLE DESCRIPTION: SOME SONATA VEHICLES EQUIPPED WITH 2.5 LITER V-6 ENGINES AND ALL ELANTRA MODEL VEHICLES MAY HAVE EXPERIENCED INTERMITTENT LOW-SPEED ENGINE STALLING, WHICH COULD OCCUR IF THE MAF (MASS AIR FLOW) SENSOR ELECTRICAL SIGNAL IS INTERRUPTED AS A RESULT OF ENGINE VIBRATION TRANSMITTED TO THE MAF SENSOR CONNECTOR WIRING HARNESS.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 »
Summary: VEHICLE DESCRIPTION: ACCENT GT MODEL VEHICLES EQUIPPED WITH DOHC ENGINES MANUFACTURED FROM DECEMBER 19, 1996 THROUGH JUNE 30, 1997; 1998 ACCENT MODEL VEHICLES MANUFACTURED FROM MAY 6, 1997 THROUGH JUNE 25, 1998; 1997 SONATA VEHICLES MANUFACTURED FROM AUGUST 1, 1996 THROUGH JULY 9, 1997 AND 1998 SONATA VEHICLES PRODUCED FROM JULY 9, 1997 THROUGH APRIL 24, 1998. THE EVAPORATIVE EMISSION CONTROL SYSTEMS MAY APPLY EXCESSIVE VACUUM TO THE FUEL TANKS DURING THE CANISTER PURGE CYCLE. MINOR FUEL TANK DISTORTION COULD RESULT. A SMALL CRACK COULD DEVELOP ON THE UPPER FUEL TANK SURFACE. THE "CHECK ENGINE" LIGHT WOULD THEN ILLUMINATE AND, IN SOME CASES, THE VEHICLE DRIVER COULD NOTICE A GASOLINE ODOR.Learn more »
Hyundai Sonata Questions and Answers
what causes engine not to take the gas when you are accellerating
where is the starter located?
Has bucked a few times when accelerating/gas light lights up even though have enought gas
Is this particular engine an interference engine or not also does it have a timing belt or chain and lastly considering the fact that this is a 6cyl. engine if I set the number 1 piston to TDC whil...
Sometimes the engine dies. This occurs in Park, and in Drive when coming to a stop in traffic. It happens about 2/3 of the time. The vacuum hoses appear to be in good condition.Car runs fine when d...
Hyundai Sonata Reviews
I purchased a 2009 Sonata GLS new in 2009. It now has over 90,000 miles on it and it is unquestionably the most reliable car I have ever owned. Handles nicely, economical to drive, fantastic warranty,dealer service departments very customer friendly and besides nornmal servicing has required nothing. Since I purchased my Hyundai my son has purchased an Elantra and my mother-in-law and my father-in-law have each purchased Sonatas. In addition, I have a new 2013 Sonata Limited on order and will be taking delivery within the month. Needless to say, I am very sold on the Hyundai line.
i love this car.. it has taken me places i have never been before...i hit 200,000 miles with only two bad batteries... the auto store replaced both of them cause they are under warranty...then i had a bad o2 sensor.. easy fix... but now my timing belt has broken. so we have driven the value out of it.. but its always got that special place in our life...at one point it was the only thing we could depend on.. so as for other hyundai owners i am a happy one...
Been a great car so far. I get about 26-30 mpg. Best mpg was 34 on a 260 mile trip. Only problem so far has been the airbag red light came on at about 70,000 miles, and it was under a recall. I love how it handles.
i have this lovly car and i adore it so much thx for korean people but plz dont eat the brain of monky alive like chinese people
This car is a nightmare for me. I brought this car new and the car is now going on 8 years old and it has so many problems. I took it to my mechanic the other day and he informs me that I need: rear hub bearings, a rack, injectors and IAC (whatever that is). Also, my timing belt needs replacing. My car has approx. 120,000. I should have brought a Nissan like my family always did. When I had my Nissan, it was still running at 15 years old. It really did not have any problems. I never had to replace the rear hub bearings, a rack, injectors and IAC or any major parts. I would not suggest to anyone to buy a Hyundai.