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How to Pressurize a Car Air Conditioning System?

1 Answers
MollyFitz
07/30/25 1:23am
Car air conditioning pressurization methods mainly include: 1. First, check the car's pressure: Rotate the top needle in the DIY refill tube bottle opener counterclockwise to its highest point, then screw the refrigerant bottle into the opener and tighten it. 2. Locate the low-pressure port, usually found under the hood on the left side with a blue or black small cap marked with an 'L'. Unscrew this cap. 3. Start the car engine and turn on the AC switch, set the blower to maximum, wait for three minutes, then connect the DIY tube to the car air conditioning's low-pressure port. 4. Once the DIY tube is connected to the low-pressure port, the pressure gauge on the DIY tube will immediately show a reading. 5. At this point, the refrigerant replenishment for the car air conditioning system is complete, and you can screw the 'L' cap back on tightly.
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