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90 Lumina APV 3.1 V6 AC info

Tiny
FIXITMR
  • MECHANIC
  • 1990 CHEVROLET LUMINA
  • FWD
  • AUTOMATIC
  • 125,000 MILES
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?
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Saturday, June 4th, 2011 AT 8:09 PM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Its the dark blue and pink black wires-for the low pressure switch-on back of the compressor
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Saturday, June 4th, 2011 AT 8:36 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
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.
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Saturday, June 4th, 2011 AT 10:06 PM
Tiny
FIXITMR
  • MECHANIC
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I meant all 4 wires.
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Sunday, June 5th, 2011 AT 12:07 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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Sunday, June 5th, 2011 AT 6:45 PM

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