Hyundai Elantra engine hesitation with poor acceleration and shifting issues, possible catalytic converter problem on Hyundai Elantra

Some Hyundai Elantra owners report experiencing engine hesitation, poor acceleration, and shifting issues, which may be attributed to a clogged catalytic converter. This condition can restrict exhaust flow, causing the engine to struggle and perform sluggishly. Symptoms of a failing catalytic converter often include slow acceleration, degraded engine performance, and the illumination of the check-engine light. Additionally, owners may notice reduced fuel efficiency, power loss, and difficulty in accelerating the vehicle. Furthermore, engine misfires can exacerbate catalytic converter problems by allowing unburned fuel to enter the exhaust system, potentially leading to overheating and damage to the converter. It is recommended that affected owners have their catalytic converter inspected by a qualified mechanic to diagnose and resolve any issues.