nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

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Thermal Vacuum Valve (TVV) <--> [Thermal Vacuum Valve, EGR]|Description and Operation|Page 1895 > < Vacuum Control Modulator|Page 1891

Sentra L4-1597cc 1.6L SOHC (E16S) (1985)

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Thermal Vacuum Valve (TVV): 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 (TVV) <--> [Thermal Vacuum Valve, EGR]|Description and Operation|Page 1895 > < Vacuum Control Modulator|Page 1891