Caravan AWD V6-201 33L (1991) Fuel Tank Rollover/Pressure Relief Valve
Rollover/Pressure Relief Valve: Description and Operation
This valve is located on top of the fuel tank, and its primary purpose is to seal off the fuel tank in the event of accidental vehicle rollover. The relief
valve portion of the valve allows fuel vapors to vent to the charcoal canister. It also allows fuel tank pressure to vent to the atmosphere when the fuel
tank pressure exceeds the calibrated sealing valve setting.
