90 lumina APV 3.1 v6 AC info

1990 CHEVROLET LUMINA
125,000 MILES • FWD • AUTOMATIC
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FIXITMR
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my AC stooped working last year at end of season suddenly and i never got around to fixing. so now it's hot and i went to start checking and i cant find the low pressure switch? the only thing i see is a double plug on compressor. 1 with a single wire and 1 with 2 wires. is the 2 wire plug the pressure switch built right into compressor?
Jun 4, 2011 at 1:09 PM
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RASMATAZ
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Its the dark blue and pink black wires-for the low pressure switch-on back of the compressor
Jun 4, 2011 at 1:36 PM
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FIXITMR
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oops! my goof. there are 2 plugs and both have 2 wires upon closer inspection. all three wires are dull washed green but 1 wire on upper plug seems slightly different in greenish color. the clutch wires are bright/saturated green and pure black.
Jun 4, 2011 at 3:06 PM
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FIXITMR
  • ✓Experienced Mechanic
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i meant all 4 wires.
Jun 4, 2011 at 5:07 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
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Jun 5, 2011 at 11:45 AM
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