Rollover shut-off valve

WARNING: This page is about a different car, the 2003 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Rollover Shut-Off Valve Closes Only If Car Rolls Over

Courtesy of SAAB-SCANIA OF AMERICA, INC.

The rollover shut-off valve closes only if the car rolls over, preventing fuel leaks.

There is a line connecting the valve with the emission canister. Expanding vapor in the tank is ventilated through the valve and the evaporative emission canister.