Low Temperature Vacuum Control Valve (All Engines)

Valve allows vacuum advance when engine coolant temperatures are below 60°F. When temperature is below 60°F, valve is closed, blocking flow of bleed air from solenoid vacuum valve. Manifold vacuum advances ignition timing in normal manner. When temperature exceeds 60°F valve opens and allows SCS system to control vacuum advance. Low temperature vacuum control valve has a blue exterior color.