A/C help

[easywind]

I recharged my system and it leaked out over 3 days. I felt around all the A/C parts and everything is dry except a steel line, about 1/2 inch, going into the firewall is very wet. I suspect the leak is there.
Is there anyone here who knows were the line goes? There is a coupling right before the firewall. Anyone know if there are O rings in this or what?
Thanks

[romulous]

Hi I have that problem too, What I did is I brought my car to an car aircon service and have them a leakdown test and they told me that my compressor has a defective shaft seal where the freon escapes. Maybe you must have a leakdown test on your A/C to determine where is the leak and after the problem is resolve have your evaporator cleaned.

[Tim]

Unscrew the line and take a look at the O-ring. It may have gotten pinched.

[F3BZ]

the line you are describing is one of 2 going into the evaporator that is in a plastic housing on the passenger side of the firewall. is it wet like water or is it wet like oil? escaping refridgerant evaporates too quickly to turn into water but the refridgerant oil in the system will escape with it and remain liquid. maybe the water you are feelling is just condensation if you checked it on a humid day with the A/C running or just shut it off. is the 1/2" line bare steel all the way to the compressor? this is the hi pressure line from the condenser to the evaporator expansion valve. it should feel warm when running and should not condensate. or does the line you are talking about have black spongy insulation on it? this is the suction line that carries refridgerant vapor from the evaporator back to the compressor. any exposed metal on this line will form condensation if the refridgerant charge is low but it will also sweat on a humid day even if the refridgerant charge is correct. there should be o-rings at these joints. they could be damaged or deteriorated. don't forget to coat new ones with refridgerant oil when replacing.