A/c repair blowing hot air on 2002 Ford Taurus

need help finding low port to put in r 1342

Asked by for the 2002 Ford Taurus
This might help: http://www.id-usa.com/images/illustrations/howTo/LowSide-3.jpg
If it's not blowing cold after 1 can, then you may have another problem. Is the compressor working? Is it cycling on and off? Did the vent temperature get cooler or is it hot? Use this to help: http://repairpal.com/blog/Heating-And-Cooling-Issues
Thank you. How many cans of r134 a does car hold. still blows hot air after one small can added.