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Extra coolant sensors

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Old Feb 21, 2019 | 12:01 PM
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Extra coolant sensors

Hey guys, I finaly got my rebuilt 302 back into my f150. The motor isnt anything special it is .40 over with exhaust porting and longtube headers through true dual straight pipes. Anyway I have electric fans on it and right now they are just wired to a switch in the cab. I would like to put a thermostat on for them but can't see anywhere to thread one in. I also want to put a real temp gauge in the truck(with numbers). So i need spots for two temp sensors. I did notice there are two temp sensors already, is one for the gauge and one for the ecm? If that is the case can i remove the one for the factory gauge? Anyone with e-fans have any advice on the best spot for the fan thermostat or the best temp for it?
 
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Old Feb 21, 2019 | 12:07 PM
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The one for the dash gauge is a single wire next to #5 injector, the one for the PCM is 2 wire on the thermostat housing and that must stay.
 
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Old Feb 21, 2019 | 07:50 PM
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Many t stat housings once were drilled for a ported vac switch.

The casting is still there, I drilled & tapped mine.

This was to small initially:



Actual use drilled & tapped for the mechanical sender at the hottest point in the system:

 
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