wire/connector coming off the a/c comp on a 5.7 vortec, i have no idea where it is supposed to go

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BIG_1088

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before hand i apologize if i posted this in the wrong area, i had no idea where else to put this

anyways, i have found this plug/wire coming off the wiring harness on the a/c compressor, and i have no idea where it's supposed to go

heres a picture down below

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does anyone know where this plugs into? i found it like that and the previous owner of the truck has no idea where it's supposed to go either

thanks

-big
 

Motorgod0

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I think it goes to the silver can of the AC unit. I’m drawing a Blanco on the name of that thing. Should be a two prong piece that that controls the pressure and activates the compressor. Or it could be nothing depending on the vehicle.
 

PlayingWithTBI

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If you have an R4 compressor do you have the high pressure shut off switch in the back or is there a plug there? When you get a reman compressor they usually don't come with the switch.
 

Chewy11B

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Based on the length, it looks like it should plug into the accumulator drier "the silver thingy". LOL. It is the pressure cutoff switch.
 

Chewy11B

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No problem that's the best part of this forum.....all crazy obsessed gmt owners......lol
 

RI Chevy guy

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Looks like the cutout switch on the back of the compressor, has the same plug as the accumulator but yours is already plugged in. Look for a small set of pins on the back of the compressor
 

Chewy11B

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But look at the length will only reach the accumulator. The compressor is too far away.
 

Donald Mitchell

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I vote for the compressor. Your also missing a bolt on top of your idler that holds something.
 

Chewy11B

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:Angry:Wait crap, I just realized I think you're all right with compressor. It looked like part of the other loom, but I turned my head 4 different ways and saw I was wrong.....so check to see if theres a sensor on back side of compressor. High pressure, I will tell you this if the compressor was new or rebuilt and just bolted on they didn't take off the factory plug under snap ring. You need to install a sensor if theres not one there......lol
 
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