Operation Manual

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1979 Volvo 242 244 245

Evaporative control systems

Vehicles intended for the North American market are equipped with a gas evaporative control system,

which prevents gas fumes from being released into the atmosphere.

The system consists of an expansion area in the fuel tank, a pressure relief valve and a charcoal filter in

the engine compartment. The components are interconnected by hoses which channel fuel fumes from

the gas tank to the charcoal filter where they are stored until the engine is started and then drawn into the

engine fuel induction system.

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