How to Solve the Ticking Noise in the 2013 Sonata 8 Engine?

[DiMichael]

To address the ticking noise in the 2013 Sonata 8 engine, the following aspects need to be checked: 1. When the car is idling, if the sound heard inside the car is not too loud, it may be coming from the valve or fuel injector: slightly press the accelerator while the car is idling to see if the frequency changes. If the frequency changes, it indicates noise from the valve; the sound from the fuel injector is generated at the valve area. 2. During cold starts, the engine may produce noise: when the engine is cold, the gap between the cylinder wall and piston is not at its optimal size, and the lubrication from the oil is not sufficient. Typically, when the engine block temperature reaches around 95 degrees, the sound will return to normal. 3. Poor-quality oil or not changing the oil for an extended period: this can increase friction between the valve and guide, as well as in the hydraulic lifters, making various noises in the engine louder.