Automotive Air Conditioning Information Forum (Archives)

ghiotom on Wed September 18, 2013 1:22 AM

Year: 1996
Make: Jeep
Model: Grand Cherokee
Engine Size: 5.2
Refrigerant Type: R134A
Country of Origin: United States

After backing out the coupler, when I physically remove the hose from the fitting, I am getting a small amount of liquid oil running out of the port. I would suspect that I should hear a small amount of trapped gas escaping and maybe a slight mist of oil. Is it normal for liquid oil to be oozing out of the port? By the way, the high side port is on the compressor if that makes any difference.

Dirkdaddy on Thu September 26, 2013 11:50 AM

I am fairly new to this myself but have had same thing on compressor mounted high ports. I think a high port farther away from compressor on top of tube would work better, but you live with it is my suggestion.

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Classic and Antique Mechanic

Cussboy on Thu September 26, 2013 2:57 PM

After some time, the pressure in the high pressure side will drop to like 90 psi. That's when I remove the coupling. Yes, there always is a small but finite amount of leakage doing this.