Route engine vacuum by coolant temperature with the Standard Ignition Ported Vacuum Switch PVS14. A ported vacuum switch (PVS) senses engine coolant temperature and opens or closes vacuum passages accordingly, directing ported vacuum to temperature-dependent devices such as the distributor vacuum advance or EGR circuit as the engine warms. It's a direct-fit replacement across a wide range of classic Chrysler, Dodge, Ford and Jeep applications — including the 1971 Chrysler 300, 1975-1981 Chrysler Cordoba, 1972-1978 Dodge Charger, 1967-1972 Ford Country Squire and the 1974 and 1979-1987 Jeep Cherokee — with 171 applications total; see the Buyer's Guide tab for the full list.
If a faulty ported vacuum switch is the cause of poor vacuum advance or EGR operation as the engine warms, this replaces it. Diagnose the cause before replacing, since these symptoms can have other sources.
Interchange: Manufacturer part number PVS14.
What does a ported vacuum switch do?
It senses engine coolant temperature and opens or closes vacuum passages, directing ported vacuum to temperature-dependent devices such as the distributor vacuum advance or EGR circuit.
Will the PVS14 fit my vehicle?
It's a direct-fit replacement across 171 listed applications, including many classic Chrysler, Dodge, Ford and Jeep models. Check the Buyer's Guide tab to confirm your exact year, make and model.
What are signs this switch may need replacing?
Signs may include vacuum advance or EGR that doesn't respond correctly as the engine warms up. Diagnose the vacuum circuit first, since these symptoms can have other causes.
How does the switch know when to change vacuum routing?
It responds to engine coolant temperature, changing which vacuum ports are connected as the engine warms or cools.
What is the manufacturer part number?
This is Standard Ignition part number PVS14.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
