1990 K2500 7200 5.7 4x4
I decided to replace and fix my AC. I replaced everything. Condenser, evaporator, dryer, orifice tube, and the compressor. I had replaced the lines 5 years ago, so they still were good.
The compressor I got:
FOUR SEASONS 57237
https://www.rockauto.com/en/moreinfo.php?pk=816250&cc=1052301&jsn=10&jsn=10&jsn=10
I cleaned everything with the right ac cleaner, dried it out with the air compressor. I got it all together with the correct amount of oil and pressure tested it for an hour. The vacuum held. I kept the vacuum on for another hour to dry out the system and I notice that there was not a connection to the back of the compressor like my old one.
Looking through the electrical diagram, I found that it is the A/C Air Inlet Valve Motor Pressure Switch. From my understanding, googling around, it seems everyone else calls this AC compressor pressure switch. I've searched around and could only find pressure switches that have two pins. I can't find ones with only a single pin. I feel like I am searching for the wrong part.
I uploaded two photos of the old compressor, I tried to pull out the switch, but it ripped out when I tried. I also attached a photo of the electrical diagram too.
Can anyone help me out?
I decided to replace and fix my AC. I replaced everything. Condenser, evaporator, dryer, orifice tube, and the compressor. I had replaced the lines 5 years ago, so they still were good.
The compressor I got:
FOUR SEASONS 57237
https://www.rockauto.com/en/moreinfo.php?pk=816250&cc=1052301&jsn=10&jsn=10&jsn=10
I cleaned everything with the right ac cleaner, dried it out with the air compressor. I got it all together with the correct amount of oil and pressure tested it for an hour. The vacuum held. I kept the vacuum on for another hour to dry out the system and I notice that there was not a connection to the back of the compressor like my old one.
Looking through the electrical diagram, I found that it is the A/C Air Inlet Valve Motor Pressure Switch. From my understanding, googling around, it seems everyone else calls this AC compressor pressure switch. I've searched around and could only find pressure switches that have two pins. I can't find ones with only a single pin. I feel like I am searching for the wrong part.
I uploaded two photos of the old compressor, I tried to pull out the switch, but it ripped out when I tried. I also attached a photo of the electrical diagram too.
Can anyone help me out?
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