raz Posted April 30, 2011 Report Share Posted April 30, 2011 I own a 2000 STS and need to add some freon. The only fittings i see are on the high side line and they are different sizes. I assume one is for low and the other high pressure but they are only 6 inches apart and on the high side line. I was unable to locate any acess ports on the suction line. Please help i am confused. I am a refrigeration tech but have not serviced any cars since the 1980's. (R-12 days) Link to comment Share on other sites More sharing options...
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