Thread: A/C Cycling - TXV?

Tech2 shows its will not engage the ac clutch upon my request because of a pressure issue. Look at my high side it shows 300+ and increasing to about 400 before shutting down the compressor after a couple seconds. I know the switch can't be bad I just changed it with a GM Part number sensor. I think the obvious would have to be the txv not opening properly causing the pressure to rise to an unsafe level.

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