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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: pete.mccarthy1986 on September 24, 2014, 09:07:42 am

Title: 86 c10 water temp sensor
Post by: pete.mccarthy1986 on September 24, 2014, 09:07:42 am

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?

Title: Re: 86 c10 water temp sensor
Post by: 78BIG-TEN on September 24, 2014, 12:44:30 pm

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

Title: Re: 86 c10 water temp sensor
Post by: pete.mccarthy1986 on September 24, 2014, 02:30:25 pm

Thanks I will post a picture when I get home.

Title: Re: 86 c10 water temp sensor
Post by: pete.mccarthy1986 on September 24, 2014, 07:09:51 pm

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).

Title: Re: 86 c10 water temp sensor
Post by: Captkaos on October 09, 2014, 09:36:16 pm

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

Title: Re: 86 c10 water temp sensor
Post by: 78BIG-TEN on October 10, 2014, 10:00:22 am

Yes t\stat under water outlet

Title: Re: 86 c10 water temp sensor
Post by: Captkaos on October 10, 2014, 09:14:23 pm

That is part of the EFE and Air Injection Reactor system