front air conditioner troubleshooting
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05-30-2009, 08:16
Post: #1
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front air conditioner troubleshooting
I am trying to diagnose a non-functional front AC (the engine driven one).
The system does not seem to have any significant leaks, as it will hold a vacuum when pumped down. A local shop helped me add the conversion connectors so we could connect the system to their diagnostic equipment. After holding a vacuum on the system for 30 minutes, we added some refrigerant and started up. There is a very small amount of cooling generated, but high-side pressure builds very high, up to 500 lbs, which leads me to guess that there is a blockage somewhere on the high side before the expansion valve. So, we pumped the refrigerant back out and I took the bird home and I am setting up to pump air through the various lines to see if and where the flow is restricted. I am trying to remove the high side line at the compressor, and there are some clamps on hose, which I have loosened and pulled back, but the hose still won't come off the barb fitting. I am wondering if I am going to have to sacrifice that last couple inches of the hose and cut it off, or if there is a better way? Here is a link to a picture of the compressor and hose and with retracted clamps. Any suggestions? http://www.hetzel.org/2009-05-30-01-bb-02.jpg Regards, Dorn Hetzel 77FC35 Hogansville, GA |
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Messages In This Thread |
front air conditioner troubleshooting - Dorn Hetzel - 05-30-2009 08:16
front air conditioner troubleshooting - Curt Sprenger - 05-30-2009, 09:40
front air conditioner troubleshooting - ronmarabito2002 - 05-30-2009, 09:58
front air conditioner troubleshooting - timvasqz - 05-30-2009, 10:59
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