Vehicle description: Minivans. The fuel tank vent hose allows air to vent from the fuel tank during refueling. Cracks have developed in the vent hose. If (1) the fuel tank is overfilled, not allowing excess fuel in the vent hose to flow back into the tank, (2) the vehicle is driven only a short distance after refueling and, (3) there is subsequently significant heating of the fuel tank, the fuel in the tank can expand into the vent hose and leak fuel.
