Help...A/c Diagnosis - Saab 900 Bulletin Board - Saabnet.com
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Help...A/c Diagnosis
Posted by hoop [Email] (more from hoop) on Sun, 2 Sep 2001 17:58:07
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I recently converted my 87 900s 16v to 134a. It worked great for about 2 months. I put in 1/2 a can that was opened during the original conversion, and 2 days later it went from very cold air to little or nothing. I had approx 28PSI(compressor running) when it was blowing cold, but now i'm showing only 12-15 PSI. When the compressor is off it is showing approximately 75PSI(both measurements on the lowside). I have tried to add more to the system since & it will not take it. In addition, there is a grayish black oily foam that comes out of the lowside hose when I take the pressure gauge off. Also, when I did the conversion I did not change the dryer or expansion valve, could these be the problem?
Thanks in advance.
Hoop
posted by 138.88....
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