Catalytic Convertor Problems of Hyundai Sonata

Hyundai Sonata owners have reported 3 problems related to catalytic convertor (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Hyundai Sonata based on all problems reported for the Sonata.

1 Catalytic Convertor problem of the 2017 Hyundai Sonata

Failure Date: 12/13/2022

The contact owns a 2017 Hyundai Sonata. The contact stated while driving at an undisclosed speed, the vehicle stalled with the check engine warning light illuminated. Additionally, there was white smoke coming from the engine compartment and the exhaust. The contact retrieved dtc code: p0420 for spark plugs failure. The spark plugs were replaced; however, the failure reoccurred. The vehicle was diagnosed with spark plugs and catalytic convertor failure. The spark plugs were replaced. The contact stated that the spark plugs looked burned. The vehicle was taken to an independent mechanic where the catalytic convertor was replaced; however, the failure reoccurred. The contact stated that the vehicle was consuming an excessive amount of engine oil for almost two years. The contact stated that engine oil was added every 600 miles of driving. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The dealer was made aware of the failure and provided the contact with the cost for a diagnostic test. The contact declined to pay for a diagnostic test. The manufacturer was made aware of the failure and a case was filed. The failure mileage was unknown.

See all problems of the 2017 Hyundai Sonata 🔎.

2 Catalytic Convertor problem of the 2006 Hyundai Sonata

Failure Date: 06/20/2006

: the contact stated there was carbon monoxide infiltrating in the cabin of the vehicle causing headaches to the driver and two passengers. The contact measured 999 parts per million of carbon monoxide within the cabin. The service dealer could not find a solution for the problem.

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3 Catalytic Convertor problem of the 2000 Hyundai Sonata

Failure Date: 01/29/2003

Steering wheel, check engine light, and catalytic converter.

See all problems of the 2000 Hyundai Sonata 🔎.




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