EL Camino V6-229 3.8L (1982)
Thermal Vacuum Valve - Carb: Description and Operation
Cold Engine Air Bleed TVS
OPERATION
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When engine coolant temperature is below the switching point switch remains open allowing cold to air bleed through the switch into the
intake manifold.
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When engine coolant temperature is above the switching point, the switch closes stopping air flow to the manifold.