Question about 1991 Buick Park Avenue

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The a/c will not work on my 91 park ave. the system is charged, but the compressor will not come on. when you press the auto button on the climate control, it goes straight to economy. also tried a different control module, no change.

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  • 158 Answers

Hi,
After all said and done regarding the problem with your car AC,it can be deduced that the problem is from the expansion valve in the system,it's bad and needs a replacement,
However,before replacing the exp valve,carry out this solution;

try disconnecting the negative battery cable, then hook it back up and start the engine to see if the compressor will run momentarily. If it is indeed low on refrigerant, you can add some while the compressor is running.If the compressor doesn't work,then proceed with the replacement of the expansion valve.

Good luck!!

Posted on Aug 03, 2010

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1 Answer

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