Question about 1990 Buick Regal

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Location of low pressure air conditioning port?

Hello,
I have not been able to identify the location of the low pressure air conditioning port and also what freon type was used on a stock 1990 Buick Regal?
Thankyou
Greg

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Follow the biggest a/c line from start to finish.Usually the a/c port is located near the firewall.I have seen the port located under the passenger wheel well.There should be a decal that states the type freon on or near the fan shroud,core support or on the under side of the hood.It is most likely to be type r-12.You can purchase an r-134a conversion kit. If you are not a/c certified to use r-12,you do not need certification for r-134a.

Posted on Aug 27, 2008

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