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You will be checking the pressures at the same time......

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Q: Before you add freon to the ac do you need to check the pressure of the high and low side at the same time or one by one?
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Related questions

Will you lose freon if you replace the ac high pressure switch?

You will definitely lose all of your Freon when you replace the high pressure switch. Once the high pressure switch is loosen the Freon will begin to access the system.


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