Oil leak from Valve Cover that was dripping on the alternator. Dealer fixed under warranty, but had to take it in twice to get it fixed correctly.
leaky valve cover gasket. Covered under warranty.
Valve covers replaced at 90K under warranty by dealer. Need replaced again after only 10 mths. Dealer says no longer under warranty. Replaced at 3rd party shop for $430. Don't trust Hyundai dealer (Chapman)any longer.
Replaced valve cover gasket that the dealer replaced less than a year ago. Also has plugs replaced as well which requires the removal of the plenum to access the rear 3 plugs.
p2106, p1295, p161B Repair was attempted but car would not start easily and ran rough. Kept the car another day and discovered work was not done properly.
o2 sensor light.
O2 sensor on opposite side quit working. First one replaced in Sept 2012.
another O2 sensor. This is the 3rd trip same problem.
They replaced one sensor and a few days later the check engine light came on and it was ANOTHER 02 sensor
Check Engine Light just came on. Checked the code myself - issues with Catalytic Converter, it appears.
Check Engine Light on with P0420 code indicating perhaps issues with the O2 sensor or with the actual catalytic converter. Due to the vehicles age and that I intend to only keep it for another 1-2 years. Repair is expensive.
Check Engine light blinking; OBD indicated that all 6 cylinders misfired; read online numerous engine issues identified with '07 Sonata. decided not to repair due to cost vs car resale value.
Cleaned throttle body
Fuel pump seal wore out resulting in check engine light. No performance hit but repair required the removal of my back seats.
Oil leak from engine block. Diagnosed by dealer saying gasket needed to be replaced.
Emission codes indicating small vapor leak, this needs to be repaired before the car will pass a New York State inspection. This did not affect the safety or the driving of the car.
Emission system, small vapor leak, O ring and a plastic tube was replaced. Emission system, left lower Oxygen sensor fault.
Vibration felt in cabin when A/C compressor engaged.
Issue appears to have been caused by engine cooling fan. Fan removed - bearings in track of fan casuing "out of balance" condition when fan spinning at high rpm. Fan replaced under warranty
Pcv valve clogged
Persistent engine check light on. Brake sticking.
Timing belt replaced under warranty
Throttle position sensor was bad and the car was in "limp mode" and had to be towed into the dealership.
Throttle position sensor going bad. Technician replaced the wrong sensor and misdiagnosed problem even though it is a common and widespread problem with Hyundai. Replaced throttle position sensor.
Random stalling. MAF and throttle body replaced. Dealer claimed K&N air filter damaged them. K&N tested parts, found no defects, probably only needed to be cleaned. K&N refunded repair cost, seeking settlement with Hyundai of Wesley Chapel.