Engine Belts And Pulleys problems of the 2017 Hyundai Sonata

April 28, 2022 the engine. It is repaced and still at antwerpen hyundi in baltimore MD. At great risk because the car would lose all forward power and reduce speed from60 mile per hour on a beltway where the traffic moves very fast and I would quickly go down to 20 miles per hour. The problem was diagnosed by 2 certified mechanics before taken to antwerpen where the 3rd diagnosis was proven a need to replace the engine. I am not sure if it was inspected by the manufacturer but the service dept. At antwerpen were in touch with the manufacturer because they approved replacing the engine. There were no-(none) check engine lights but it did say change the oil. I did change the oil even though it was only 1200 miles since the oil had been changed. The power failure occured two times prior to the final time and I took it to jenkins Hyundai in leesburg florida (where I bought the car) and they continued to report no problems. The problem 1st appeared within the first 30 days of the purchase on may 22, 2021. Upon receiving the car back after engine replacement the car was blowing black smoke (lots of it) I took it back to antwerpen and they found the turbo was completely destroyed (because the manufacturer had them -power clean?-the turbo. The manufacturer agreed to pay to repace the turbo. However upon closer inspection the cateletic convertor was ruined because of all the oil thrown . They agreed to pay for the converter but I had to pay for the labor (?) it took 2 weeks (while I had to pay for my transportation) to complete. I was to pick up the car on the 27th of April,2022 and I did. It is still blowing lots of black smoke. Antwerpen said drive it for a few weeks and the smoking will stop. I drove 13 miles and the car start trembling- all over shaking. No flat tire. The engine is rumbling and shaking the car. Antwerpen said don't bring it in. Let me do some looking around and I (deana parks) will call you by 2 p. M. Today (5/28/22 I am afraid of I.