No Air Conditioning

[onpoint01]

Hello All,

Verified over the weekend that I lost my AC charge. Haven't done the standard check of looking for AC oil residue on the components, but I thought I'd toss this out to see if there is a particular component that is prone to failure/leakage.

 

[ENGINE er]

I would say not. 225k miles on my original system here. I am just now replacing the Clutch bearing, but multiple water crossings killed that. If it all leaked out, im sure the fluid will be easy to find.

 

[e9999]

my 80 as a tiny leak through one of the connectors. Probably the Oring or needs to be tightened more but since it only requires a refill every 2 or 3 years I haven't bothered to fix it. I can see some oil on the rad but more like just traces and coloring. The 100 lost refrigerant fairly rapidly though a connector as well or was it the drier, up front to the right of the rad IIRC. It was pretty noticeably wet. If you have a serious leak and lost the charge quickly you will probably indeed notice a bunch of oil.

 

[duggy]

Do you have AC gauges? You can blow compressed air into the system and start spraying a spray bottled filled with soap and water to find your leak.

 

[2000UZJ]

I lost my AC due to the ARB bracket rubbing on the front line where it passes near the frame horn. I would check that for chaffing. Bumper or no bumper, it sits very close to the frame. If you have lost all freon, the pipes should appear damp. Do not run the AC, it'll damage the system.

 

[parnoren]

The thinner of the two lines that go all the way to the rear a/c quite often develop leaks. There are a few brackets under the car that grime gets into which rubs on the line until it breaks. If you visit an a/c shop, or dealership like I did, they can fill the system (if you are empty) and then use a "sniffer" to detect any leaks along the line. My truck is a 2002 with 160,000 miles. I just changed the rear most line last week, and the front part last year. Some people have cut out and plugged the rear a/c line to save cost while others have been successful installing a flexible tube in place of the damaged part.

 

[onpoint01]

I'm going to pressurize the system using shop air and use the soapy water to try and find the leak.