Posted by charlieu on January 23, 2013 at 19:21:04 from (209.131.224.80):
In Reply to: Re: a/c on '86 series posted by Dave from MN on January 23, 2013 at 18:23:10:
If your system is going flat in 5 days you have a bad leak. I'm sure that I'm going to have people throwing rocks at me, but what I do, when I'm looking for a bad leak is to pressurize the system with compressed air. I hook a fitting up to my shop air hose and open it up to pressureize the entire system to 140 lbs. I then get a spray bottle full of soapy water and start spraying down the system, all the fittings, hoses, connections, condenser, and everything you can gain access to. You are watching for air bubbles. Once you find and fix the leak you need to pull a vacuum, and make sure that your system holds that vacuum for 30 minutes. I then would replace the receiver dryer, pull full vacuum again, before recharging. The point is you need to find where it's leaking, so you know what needs to be replaced. Good luck
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