Recently all the freon emptied out of my A/C lines, and on the main line that connects to the condensor and goes down I noticed some freon on the bottom. I took off the line and hooked it up to the hose to see where it was leaking from, but the water went straight through. Is it that there isn't enough pressure from just pooring water through it and the crack is that small that I couldn't tell if the leak was in this line? How else would I check the line? TIA

 

Go get freon with Dye. Pressurize the system and then wait for awhile and get a fluorecent light. The dye reacts with the light and glows where there are leaks. You can go to a shop and they can do this as well since they have the equipment.

 

water hose to check for a leak?

refrigerant oil + h20 = acid. Make sure you pull a deep vacuum so the moisture is removed.

Pressure test it with nitrogen. If it's a huge leak it won't hold pressure at all. If you haven't found the leak yet, charge it up to 200 psig. If you don't hear the pressure loss, grab the lines and shake them around, until you hear it. That's how i find leaks in the field.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by superfuji57 &raquo;</TD></TR><TR><TD CLASS="quote"> Recently all the freon emptied out of my A/C lines</TD></TR></TABLE>

i hope you didn't just release it all into the atmosphere.....that **** is killer......

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by non-VTEC &raquo;</TD></TR><TR><TD CLASS="quote">

i hope you didn't just release it all into the atmosphere.....that **** is killer...... </TD></TR></TABLE>

if it was leaking, he had no choice..sucks for the atmosphere indeed though

die is your friend though

 

if you have want to see if your ac system has any leaks, just run a vaccuum on it, if it holds pressure its not leaking, but it doesn't go all the way down to 30 on the low side, you have a leak somewhere

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PrettyLude &raquo;</TD></TR><TR><TD CLASS="quote">if you have want to see if your ac system has any leaks, just run a vaccuum on it, if it holds pressure its not leaking, but it doesn't go all the way down to 30 on the low side, you have a leak somewhere</TD></TR></TABLE>

The vacuum pump won't help him locate the source of the leak. If the lo side gage rises from vacuum to 0 psig you have a leak. Hopefully it's something easy to fix like an o-ring or loose flare nut.

Good luck.

 

So the freon I found on the line isn't really a good sign that there's a crack on that particular line? Is there any way to test just that line, or should I go ahead and put it back on and get a UV dye testing kit? Thanks for your help guys

 

cap off one end somehow and pressurize it with air