Low Pressure Port

Charge with port next to windshield washer fill tank you can not go wrong either way because the ports for the high and low side are different sizes the low side port where you want to charge from is the bigger port and the hose end to charge will only fit on that port. Also another way to tell is the low side has a bigger pipe size the the low side which is smaller.

Thank you very much. :-)

Pay $85-100 and have it evacuated, checked for leaks 30mm of vacuum ...and filled with the correct oil PAG,# and amount. Then filled to the correct weight ONLY proper way, of refrigerant 134A. That's what I suggest..

Where do i