geo Workshop Repair Guides

Geo Workshop Service and Repair Manuals

Thermostatic Air Cleaner > < EFE Relay|Locations
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EFE Relay: Description and Operation

The EFE relay is a normally open relay switch that supplies power to the EFE heater and vacuum advance VSV (vacuum solenoid valve) during cold
start and warm-up periods. This relay can close (energize) only when the auto choke relay is energized.

Thermostatic Air Cleaner > < EFE Relay|Locations