| 摘要 |
A method and system of controlling an operating temperature of existing vehicle engine cooling fan on and off cycles includes the installation of a temperature sensor switch assembly to a coolant hose of a vehicle engine, electrically connecting the temperature sensor and switch assembly to one or more relays, and electrically connecting the relays to respective cooling fans of the vehicle engine. The temperature sensor and switch assembly is pre-set to cycle on and off at pre-determined temperatures or temperature ranges and can be adjustable to allow for individual control. In another embodiment, the sensor signal can be transmitted to the CPU/ECU, which in turn is wired to the relays, or transmitted directly to the relays as noted above.
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