A/C woes for 2004 silverado

[MadManAndrew]

If this thread is otherwise done, I have a related question. I have a brand new compressor, accumulator, and orifice tube, and today I charged my system to 60 psi when the ambient temp was about 100*F. It blows ice cold, but the problem is that it still cycles off frequently when I'm driving. I can constantly feel it going from cold to warm about every 30-45 seconds. At idle, it stays on and blows cold. What the hell do I need to do?
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