Air Guard System: Description

The Air Guard System is used on all 6-cylinder engines to reduce carbon monoxide and hydrocarbon emissions. The system adds a controlled amount of air to exhaust gases in the exhaust ports, causing oxidation of the gases. The Air Guard System used on all Eagle models consists of a belt driven air pump, diverter valve, air injection manifold and connecting hoses. A dual system input is used on all Federal vehicles which, in addition to the above, includes an air control valve, coolant temperature override (CTO) switch, upstream and downstream air input hoses. California vehicles use the Federal dual system plus an air bypass circuit and an electrically controlled air control circuit.