2008 navigator - No pressure changes when compressor is on

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crashandwalkaway

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Joined
Aug 17, 2022
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Outer Banks
Just picked up this vehicle site unseen and took a gamble. Still worth it considering the price however AC is inop. Checked pressures with gauges and static is showing 85hi and low @ 80f ambient. The compressor struggles, and sometimes "squeals". Ok, it's more of a continuous honk sound, and the clutch isn't grabbing well but finally does. However when it is running there's no change in pressure on Hi or Low sides. Assuming the compressor is shot but wondering is it worth being proactive and replace other parts in the system, and if so what ones?
 
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