A/c help

1989 BUICK RIVIERA
241,000 MILES
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CRAZEEDUDE1974
  • MEMBER
  • 6 POSTS
I need help trying to get the air cond recharged compressor will not engage how do you reset the CRT computer to recharge the a/c all it sez is refrigerant low compressor disengaged to prevent damage
Apr 18, 2013 at 10:08 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
thats the low pressure switch job.

try disconnecting battery and re installing and see if that does it

Roy
Apr 18, 2013 at 10:30 AM
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CRAZEEDUDE1974
  • MEMBER
  • 6 POSTS
I disconnected the cables tonight will see what happens tomorrow
Apr 18, 2013 at 10:34 AM
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CRAZEEDUDE1974
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That did not work what about the CRT diagnostics I know how to get into that but not sure what to do once in there lol
Apr 22, 2013 at 11:28 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
did you put any freon in the system yet?? it has to have enough to engage the low pressure switch

Roy
Apr 22, 2013 at 11:31 AM
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CRAZEEDUDE1974
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  • 6 POSTS
Put one can in or should say I think it went in
Apr 22, 2013 at 11:33 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
it will only re set with freon in the system

Roy
Apr 22, 2013 at 11:35 AM
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CRAZEEDUDE1974
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  • 6 POSTS
Ok I'll give it another try tomorrow and I will be leaving a donation on paid day
Apr 22, 2013 at 11:53 AM
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CRAZEEDUDE1974
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Ok system charged by using a jumper wire to engage the compressor it's fully charged and still doesn't work when I plug factory wire back in.....I also changed the low pressure cut off switch....climate control computer??? And where is that located please?
Apr 30, 2013 at 5:33 AM
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