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Anonymous Posted on Aug 15, 2014

Location expansion valve

A/c

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Lawrence Oravetz

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  • Buick Master 10,558 Answers
  • Posted on Nov 22, 2016
Lawrence Oravetz
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There is no expansion valve. There is an orifice tube in the high side hose where it connects to the evaporator inlet fitting. You'll have to let the freon out first to open this connection. Use needle nose pliers to grab the orifice tube. If the screen is plugged with aluminum mud, there are more serious problems with the system that will have to be addressed. Of you don't have the tools , a vacuum pump and a gauge set, I'd let a A/C shop do the job.

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