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Ok..I admit it. I bought the fan and the temp sensor from various places and didn't get a complete kit (re: No installation instructions), so I'm a tad lost regarding the one connection temp sensor that screws into the intake manifold. Where/how does this wire in?

I understand the 12v off the Sol battery term going to the Relay, and the relay to the fan.

it's the sensor that's got me stumped.

Help!
 

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If that is indeed an electric fan thermostat then it is a grounding type. The relay will need a power supply to one side of the relay coil (the little wires, not the fan power) and the other side goes to that thermostat. Then when the t-stat "clicks" on it grounds and completes the coil circuit.

Personaly I would wire the power side of the coil circuit to a switched power supply. That way when you shut off the key the fan quits also. Some guys like to keep the fan running until the engine cools clear down. Six one, half a dozen the other.
 
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