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Thermactor Bypass/Diverter Valve

Used only on models equipped with Electronic Engine Control III (EEC III). Differs from standard type bypass valve in that it can route thermactor pump air to 3 different locations:

Proper routing of thermactor air is determined by the Electronic Control Assembly (ECA) based on engine coolant temperature and other sensor data. For additional information, see Ford Motor Co. Electronic Engine Control III (EEC III) article in this section. 

Fig 1: Thermactor Bypass/Diverter Type Valve
G09343105Courtesy of FORD MOTOR CO.