1992 Cadillac El Dorado AC not working

1992 CADILLAC ELDORADO
81,862 MILES • V8 • FWD • AUTOMATIC
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BUD3993
  • MEMBER
  • 2 POSTS
I put freon in and the compressor will kick on and off and the dash will say freon level is very low. Then it will say cimpresor is off. The gauge says the freon is at max. Is there a senor that may be feeding the computer the wrong info?
Aug 9, 2010 at 4:03 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
When you turn the AC On do you hear the clutch engage the compressor? If not check the high and low pressures start here.
Aug 9, 2010 at 4:25 PM
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BUD3993
  • MEMBER
  • 2 POSTS
Yes, the clutch does come on but them it will kick off.
Aug 9, 2010 at 4:40 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check and test the low pressure switch and the AC clutch relay
Aug 9, 2010 at 6:33 PM
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