nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Thermal Vacuum Valve - EVAP|Description and Operation|Page 3299 > < Evaporative Emissions Hose|Testing and Inspection
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Thermal Vacuum Valve - EVAP: Description and Operation

Fig. 13 Thermal vacuum valve.

    This valve, Fig. 13, is the wax pellet type. When the air passage is closed the carburetor vacuum signal is applied to the diaphragm of the EGR control
valve to actuate the taper valve connected to the diaphragm. This valve is co-used as a component for the catalyst warm-up system and evaporative
emission control system.

Thermal Vacuum Valve - EVAP|Description and Operation|Page 3299 > < Evaporative Emissions Hose|Testing and Inspection