TwinTurbo.NET: Nissan 300ZX forum - Ac high side and low side
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Subject Ac high side and low side
     
Posted by Hiruzai_z32 on May 19, 2023 at 5:48 PM
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Message I've bought myself the gauges, adapter, and more goodies. When I turn on the AC compressor there's a loud hissing behind the glovebox and when I turn off the compressor that sound slowly dissipates. -is that normal? Keep this in mind.

High side reaches just about under 100 while the low side reaches 20psi.
I noticed that shortly after the low side begins to climb up to 80-90 while the high side steadily goes down.
I know this is not normal. What could it be? When it does this it drags my compressor down

     
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