Question about 1991 Buick Park Avenue

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A/C does not work

I have a buick 1991 Park ave. The a/c compressor will not turn on when I turn the a/c on. Blower motor works fine, but will not blow cold air.

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  • rogsur May 31, 2009

    I have no way to check pressure unless I take it to a garage. I was wondering if there is a fusible link that could be bad? I did take the cap of the schrader valve and pushed in onthe spring gizmo and there was freon coming out.



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  • Master
  • 4,669 Answers

Have you checked to see if it has any freon in it. What is your low side pressure?

Posted on May 31, 2009

  • Clint Smock
    Clint Smock May 31, 2009

    Go to a parts store and buy a charging hose that has a gauge on it. It will cost you about 25 dollars. Hook up the gauge and read the pressure. Also since it is a 91 you will need adapters for the line if it hasn't been converted to 134A. One way you can tell if its just low is to unplug the low pressure switch and jump it with a piece of wire. The compressor should come on if you do this. If it does you need to check pressure. The low pressure switch in screwed to the accumulator on the passenger side near the firewall.

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