Hyundai XG350 engine won't crank, makes rattling noise and shakes when it does on Hyundai XG350

Some Hyundai XG350 owners report experiencing issues with their engines not cranking, accompanied by rattling noises and shaking. These symptoms may be linked to engine problems, including complaints of racing at start-up and speed control issues in the 2004 model. Additionally, many owners have noted rough idling due to a faulty EGR switching valve, which can lead to unstable engine performance. There have also been reports of unwanted engine acceleration in the 2005 Hyundai XG350, potentially contributing to the shaking and rattling experienced during operation. Furthermore, various other problems have been reported, including concerns related to seat belts, airbags, and body/paint issues, which could be connected to the symptoms observed. It is recommended that owners seek a qualified mechanic's inspection to accurately diagnose and address these issues promptly for safety and optimal vehicle performance.