Scion xB vehicle shuts off momentarily before restarting on Scion xB

Some Scion xB owners report experiencing intermittent shutdowns where the vehicle momentarily loses power before restarting. This issue may stem from engine power loss, potentially caused by problems with components such as the starter, battery, alternator, or a misadjusted throttle cable in manual transmission models. Additionally, contaminated or bad gasoline, particularly sour gas, can lead to the engine shutting off while driving, especially if the fuel is old or contaminated. Some owners have noted a grinding noise before the engine turns off, which may indicate underlying mechanical issues. Furthermore, if the vehicle shuts off when going over a bump, it could suggest electrical system or fuel delivery problems. In the event of a power loss while driving, it is advised to safely pull over, turn off unnecessary electrical components, and check for issues like a blown fuse affecting the fuel pump. Diagnosing the specific cause of these shutdowns is crucial for ensuring the safe and reliable operation of the Scion xB.