Q: A/C issues
My 2000 Chevy Tahoe has no cold A/C. So I went to the store today and bought an A/C recharge kit to recharge it. It directed me to disconnect the hose and check my level before connecting it to the A/C coolant bottle. So I did this and I immediately realized that it was in the middle of the red zone, obviously meaning it was severely overcharged. I have never recharged this system before, so there should be no reason it is overcharged. But then I realized that when my A/C compressor kicks on, the pressure drops down to the blue, meaning that it is undercharged. It makes no sense that it goes from being overcharged to undercharged. Does anybody know the solution to this or why this would be happening? Thank you for your help in advance.
My car has 135000 miles.
My car has an automatic transmission.
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