1984-1985 Chevrolet Citation II 2.5L L4 GAS;. 1984-1985 Chevrolet Citation II 2.8L V6 GAS;. Gates - Driven By Possibility. Fuel Tank Cap;. Pre-Release Fuel Tank Cap;. Excess fuel system pressure is relieved through an internal spring and gasket valve that is specially designed to allow venting without losing liquid fuel.
