Rollover Valve: Description and Operation

Fuel Tank Components:

Check And Cut Valve:

The check and cut valve, located in the body panel above the fuel tank, is part of the evaporative emission control system. It has three functions:

1. Vents the fuel tank to the atmosphere if tank pressure exceeds approx. 0.78 - 1.0 psi (5.37 - 6.87 kPa), to prevent fuel tank damage.

2. Allows air from the atmosphere to enter the tank if tank pressure is approx. 0.14 - 0.71 psi (0.98 - 4.91 kPa) less than atmospheric, to prevent fuel tank damage.

3. Blocks fuel from leaking through the evaporative system in the event the vehicle is overturned.