[acmech13]

I am trying to figure out what the wire on the back of my compressor is for. my new compressor does not have a spot to connect this wire. Is the wire that was connected to my old compressor a pressure switch?

 

[acmech13]

its a 2002 v6

 

[guyonearth]

Does your new compressor have a plug in it's place? If so, you need to take that out and install the old switch there. And yes, it is a pressure switch.

 

[acmech13]

it might be considered a plug. didn't look like it came off thou. its metal and kinda flat with a center bulg

 

[guyonearth]

If it's not a plug held in by a snap ring you may have the wrong compressor. Rebuilds are supposed to use the late bodies so that the switch port is available, they are delivered with a solid plug in place of the switch in case you don't need it. I don't know what happens if you run without the switch hooked up.

 

[astro355]

If it's not a plug held in by a snap ring you may have the wrong compressor. Rebuilds are supposed to use the late bodies so that the switch port is available, they are delivered with a solid plug in place of the switch in case you don't need it. I don't know what happens if you run without the switch hooked up.

No a/c.

 

[acmech13]

you can't jump the switch out? the back of the compressor had a plug held on by a snap ring. and it also had a spot with a tin glued down cover. the tin ripped on that cover thats probally a relief valve im guessing. I do HVAC only reason i took on this project. that and i like working on my cars.

 

[guyonearth]

The switch is designed to prevent the compressor from running empty. You should be able to swap the switch into the new compressor.

 

[acmech13]

it has a built in low pressure switch. I jumped the wires out. the compressor would start but untill i put enough gas in it around 18psi it would shut off. Im guessing these wires are probally for a high pressure switch. to shut it down if the condensor gets plugged to protect the compressor. For now i just stuck a piece of tstat wire into the plug as a jumper. My truck sounds nice now with its new ac compressor.

 

[jeff's93astro]

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