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Malibu And Chevelle Thermal Vacuum Valve, 1980-1983

Malibu And Chevelle Thermal Vacuum Valve, 1980-1983
$74.99 ea
NEWLOW STOCK ALERT!Only 2 Left in Stock
Model: 3023638
STANDARD
DELIVERY

2 Ports Federal Emissions NA5 California Emissions NB2 Fits V6 And V8 Engines The emission system on your 1980, 1981, 1982, 1983 Malibu and Chevelle, suffers from wear and neglect. This device is a heat-sensitive switch that remains closed until the engine's coolant reaches a certain temperature. The PVS screws into the intake manifold, thermostat housing or engine so the heat-sensing element is in contact with the engine's coolant. Inside the switch is a wax plug that pushes a sliding plunger to uncover or block vacuum ports in the switch. As the engine heats up, the wax expands and pushes the plunger up until it uncovers or blocks the vacuum port. At this point, vacuum to the device that the switch controls is either applied or blocked. Severe engine overheating can damage the switch, making replacement necessary.

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