Question about 1993 Saab 900
I've discovered that the AC clutch doesn't engage. I have voltage to the compressor. The low pressure switch shows no continuity. AC coolant temperature switch shows continuity. I haven't been able to locate the anti-frossting switch to check it.
How can I tell whether the clutch or compressor is bad, or the R-12 charge is low? I suppose I could have the R-12 charge checked. Am I missing something.
Usually the clutch is frozen means you need Freon R-12, please go to the small glass window on the condenser to find out there is some white bubbling inside, if you have white bubbling means your AC lack Freon, but if you lost all Freon, the window is clear, so you have to check, I hope from there, you can tell the Freon level.
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Posted on Jul 06, 2008
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Posted on Jan 02, 2017
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