ac leak

so i looked around for a more general place to put this but figured i'd post it in the honda section.

i have a 90 crx. i just put ac on it and did a r134 retrofit. i put on the low pressure port and filled the system. it worked great for the rest of the day. the next day there was no freon in the system. so i went out and got some red dye r134 and just filled it, as soon as i was done filling all the red dye was coming out of the low pressure port. i turned off the car and i could hear the freon hissing out of the port.

does anyone have some suggestions on how to fix this?????

Well, you know you have an AC leak and you know where it is leaking from, so...wouldn't that be obvious to replace the part that is causing the problem (replace the low side service port)?

You will probably need to replace the section of AC line where the low side service port is. Be sure to replace the O-rings, cause it will be a waste of time and money when you find out you have a leak due to the damage O-rings and have to start all over again.

You can't just fill the system with refrigerant when it's empty; you have to put the system in vacuum first so there is no air inside. The moisture in the ambient air will damage your AC system. Also by putting it in vacuum you can test to see if there is a leak. I suggest you let the repair shop to do the AC work unless you have access to an AC machine.