In your car or truck, that normally means a seal ... Then release the trigger and close the valve. AC refrigerant is toxic, and leaks are a problem. If you recharge your system and days later ...

Check the car ac recharge product's label for compatibility ... Hold the can upright and squeeze the trigger (or open the valve). Then rock the can from 12 o'clock to 3 o'clock until the gauge ...

Next, it moves through the expansion valve, which reduces the pressure ... and the cycle repeats. Yes, car air conditioning can reduce fuel economy by up to 25% during the hottest summer months.