Scion tC transmission problems with loud noise at idle and in all gears after purchase on Scion tC

Some Scion tC owners report experiencing loud noises at idle and in all gears after purchase, which may be indicative of several transmission-related issues. These owners have noted a rough noise when starting the car and releasing the clutch, suggesting potential problems with the clutch system. Additionally, some have experienced severe slips or flares during gear shifts, particularly between 2nd and 3rd gear, along with delays and failures when engaging reverse, which could point to issues with the automatic transmission, especially the U241E model. A rattling noise from the gearbox that disappears when the clutch is depressed may be linked to a throw out bearing or input shaft bearing problem. Furthermore, excessive noise from the transmission, resembling a supercharger sound, could signal a bearing issue nearing failure, requiring transmission removal for repair or replacement. Owners have also reported specific noises occurring at certain speeds, such as a whistle at 65MPH, which may indicate further transmission concerns. Lastly, a seized VVT Phaser has been associated with loud sounds and shaking at idle, potentially affecting the VVT solenoid and oil flow, thus contributing to overall noise problems. It is recommended that affected owners seek inspection from a qualified mechanic to accurately diagnose and resolve these issues.