1sxyrxy

i was charging my ac today because it didnt feal super cold to me so i discharged it then charged it and after that i took it for a spin. it was blowing nice and cool. so i pop my hood and look through the sight glass and there is nothing there. so i get back in the car and its still blowing cold jump out and look through the sight glass again and i could see bubles. the same as before i charged it then it went away. i havnt taked my ASE for AC yet but i thought looking through the sight glass your supposed to see a constant stream. also after all of it i noticed there are 2 low sides. whats up with that, am i supposed to do something special or use a certain low side to charge it with?

jrmoskal

I am in the process of fixing the a/c on my 95 Sc3 also. I am a licensed ase ac tech and i have never seen a system set up quite like this one before. I am not sure about the 2 low side ports. i have used them both with equal results. I usually use the one towards the center of the inner fender. My car ended up having a small pinhole leak underneath the vehicle on the low side line near the drivers side. Whenever i would charge it up full after a few minutes there would be air in the sight glass due to the fact that the leak on the suction side of the system was drawing air into the system. I would check the lines carefully underneath the vehicle. they tend to rub on the brackets that secure them and over the years they will rub through and leak.

koolaidman

whats static pressure
whats the high side pressure
and low side.

by telling me that i can diag ur problem