86 c10 water temp sensor

[pete.mccarthy1986]

I am trying to locate or identify the water temperature sensor that is located on the water outlet housing along with the ported vacuum switch.  I am assuming its a sending unit as It has a single prong.  Looking through part sites I can only find sensors with two wires.  Do I need to convert it to a two wire or is this just a hard to locate part?

[78BIG-TEN]

More info would help,but just guessing the switch in the t\stat housing is for egr bleed solenoid.Temp gauge sensor in left cylinder head ,assuming this is a 305 non ecm controlled system

[pete.mccarthy1986]

Thanks I will post a picture when I get home.

[pete.mccarthy1986]

I think its a temperature switch not a sensor.   The single wire runs to the accelerator pump solenoid.   Not sure yet if it activates the engine temp light or has some role in  activating the solenoid.  When I get it running this weekend I will know for sure (I hope).

[Captkaos]

Is this the part in the water outlet that houses the thremostat?

[78BIG-TEN]

Yes t\stat under water outlet

[Captkaos]

That is part of the EFE and Air Injection Reactor system