Scion tC loud grinding noise during acceleration after refueling on Scion tC

Some Scion tC owners report experiencing a loud grinding noise during acceleration after refueling, which can be alarming. This issue may stem from poor quality or contaminated fuel, potentially leading to engine knocking or pinging noises. Additionally, problems within the fuel system, such as a clogged fuel filter or a failing fuel pump, can contribute to these unusual sounds. Concerns with the exhaust system, like a damaged muffler or exhaust pipe, may also result in loud noises during acceleration. Furthermore, some owners have reported transmission problems, including low fluid levels or worn-out gears, causing grinding noises when accelerating. Worn or damaged engine mounts can lead to excessive engine movement, contributing to strange noises as well. It is recommended that owners have their Scion tC inspected by a qualified mechanic to properly diagnose and address these issues, as regular maintenance and prompt repairs are crucial for the vehicle's smooth operation.