Need AC pressure specs - Saab 9-5 Bulletin Board - Saabnet.com
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Need AC pressure specs
Posted by jb928 [Email] (more from jb928) on Sun, 18 Jul 2010 22:33:15
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I'm having a problem with only moderate A/C output on my 01 Aero. Since I bought the car with 80K miles on it, it has never been great. The heater mixer valve has been replaced with no change in output.
I couldn't find the Hi-Side connector at first, and Lo side reading was around 0 psi with compressor running, so I added a can of R-134 .... this made it worse. With removing the grill to reach the Hi-Side connector, I now see a pressure of 370 psi & low side of 40 psi at 70 deg ambient temp. I assume this is way out of range for most cars .... thinking I have a partially blocked expansion valve? Anyone know the factory specs? Anyone have a similar problem & fix?
New problem is that air won't flow to the center vents, just top or bottom. I have had a few problems with it not flipping to Defroster before. Are they somehow related problems?
Thanks,
Jonathan
posted by 75.49.1...
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