well the air is cold so it's not a leak, the air is just not coming out fast & not at all at times. So I got a used ac unit n I plan on replacing it. When the air is not coming out no matter what setting I put it on it won't work. When it does come out it will go to any temp I put it so it will get cold but it's not strongWhat is the problem? Not making cold air? You need to find the leak. Not too many places that can leak all the refrigerant out.
My truck was in a head on collision, Had to replace the condensor. Pulled a vacuum on the system and recharged it.
Do not put the refrigerent that contains the leak stop! Find the leak and fix it and recharge it with 134a.
What were you referring to when you say "replace"?
Kind of sometimes in won't turn on at all when I have it on the ac, but it will always turn on with the heat. But if it doesn't turn on then the heat won't go on either, if that makes senseSounds like you need to replace the blower, not the AC system. It should do the same thing on heat settings too, right?