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The coolant temp sensor for the gauge is located near the front passenger side of the engine near the thermostat. It will be pointing slightly down and to the front of the truck. Will have a single yellow wire attached.
The coolant temperature sensor for the ECU is bolted into the intake manifold in front of the carb. It will have a green 2 pin molded body.
A 3rd sensor is located in the bottom of the radiator, this turns on the Carburetor PTC heater when the coolant temperature is below 60 deg F.
Kyrasis6
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