Using a set of a/c gauges both the low and high side readings will be of equal value, meaning that the compressor has equalized or its very noisy.......
From what I know, the A/C compressor is going bad. The accessory belt turns the compressor, and in your car, that part of the compressor is going bad, so the belt meets too much resistance; hence the squeaking. Had this happen to my car, too.
You have a certified shop do a system performance test, unless you know how to perform such a test yourself with a manifold gauge set.
The condenser usually leaks and that makes it go bad. Also it can become clogged if the compressor goes bad and pumps metallic particles through the system.
the ac belt or the compressor bearings are going bad
They can get noisy and leak oil. You want to replace a noisy ac compressor before it fills the system with metal trash.
Check for a blown fuse in fuse block and also at the top of the compressor Bad switch Bad compressor clutch
Typical causes of a compressor not running are: low coolant, blown fuse in compressor circuit, bad compressor, bad temperature sensor.
Bad bearing in compressor? Bad bearing in compressor?
How can I know with no more information than this? Seek out professional help.
you just do! you have conventional suspension, there is no need for one...
in what
What specific kind of vehicle do you have? It does sound like the clutch may be bad, but we also need to know what you are working on. You need to run power straight from the battery to the compressor. If is still does not engage then you need to replace the compressor and clutch, they are dead. If they do engage, then you have a wiring or computer issue.