> I heard a refrigerator compressor can be used as a vacuum pump
> to pull a vacuum on an automobile, or other, AC systems. Anyone have
> experience with this?
It works OK if you're just trying to suck the air out, but doesn't pull a
hard enough vacuum to boil out any accumulated moisture (especially from the
dryer). So if you have a moisture detector in the system, it will turn
yellow again almost immediately. But, I've never seen a car with a moisture
detector, so you'll probably never know the difference.