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    heather72384's Avatar
    heather72384 Posts: 2, Reputation: 1
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    #1

    Sep 22, 2006, 01:39 PM
    1990 Infiniti has no A/C
    I have a 1990 infiniti and I can't get the a/c to work! I replaced the whole electrical unit and it still doesn't work. Any suggestions on what might be the problem?
    Dr D's Avatar
    Dr D Posts: 698, Reputation: 127
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    #2

    Sep 22, 2006, 02:26 PM
    Have you checked to make sure that the system has an adequate freon charge? If it does, you will probably have to get a shop manual and follow the prescribed trouble shooting sequence or take it to a shop. On some cars the computer controls the power to the AC.
    esquire1's Avatar
    esquire1 Posts: 2,483, Reputation: 209
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    #3

    Sep 22, 2006, 06:54 PM
    If it is low on refrigerant it could be out on the low pressure switch. You could try bypassing that switch momentary and see if the compressor kicks in.Like Dr D said it could be many things. There is a sequnce to troubleshooting that can be over the head of diys
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