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Home >> Ford >> 1996 >> Aerostar Van Window >> Repair and Diagnosis >> External Pages >> Different car >> Section 113 (Engine Controls - Theory & Operation - EEC-V) >> Emission Systems >> Evaporative Emission System >> Pressure/Vacuum Relief Fuel Cap

Pressure/Vacuum Relief Fuel Cap

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

This system consists of a sealed filler cap with an integral pressure/vacuum relief valve. Under normal conditions, filler cap allows air to enter fuel tank as fuel is used, while preventing vapors from escaping.

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