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Home >> Ford >> 1996 >> Aerostar Van Window >> Repair and Diagnosis >> External Pages >> Different car >> Section 114 (Engine Controls - Theory & Operation - EEC-V) >> Emission Systems >> Evaporative Emission System >> Rollover/Vent Valve

Rollover/Vent Valve

WARNING: This page is about a different car, the 1995 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.

Rollover/vent valve is located on highest point of fuel tank. With fuel in the fuel tank, pressure increases, and the rollover/vent valve releases this extra pressure into the atmosphere. Also, if vehicle is in a rollover situation, the rollover vent valve closes and will not permit fuel or fuel vapors to escape from the fuel tank.

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