Hyundai Sonata hard engine knock when decelerating from high RPM on Hyundai Sonata

Some Hyundai Sonata owners report experiencing hard engine knocking when decelerating from high RPM, which may be attributed to several potential issues. These include damaged suspension joints that could contribute to the knocking sound, as well as low oil pressure that can exacerbate the noise during deceleration. Additionally, worn rod bearings are commonly cited as a cause of engine knocking in this model. Ignition issues, such as problems with spark plugs or the ignition system, can also lead to knocking sounds. Furthermore, timing problems within the engine may result in similar knocking noises when decelerating. It is crucial for owners to address these issues promptly to prevent further engine damage and maintain optimal performance. If the knocking persists, seeking inspection and diagnosis from a professional mechanic is highly recommended.