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post #1 of 7 (permalink) Old 06-26-2012, 06:48 PM Thread Starter
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AC Problem/Leaking Oil?

I have an 05 Chevy Cobalt LS Sedan. I have owned it for 4 years and it has 169,xxx miles on it. My AC recently stopped working as well, and today on my way home from work it seemed to be working great. I look behind me in the mirror and I see a trail of black smoke behind me. I pull off to the side of the freeway and it is leaking a thick green fluid and what looks like water. My instant thought was antifreeze. I started driving again to the next exit (watching the temp gauge closely). It seemed to stay at around 209 degrees reaching 212 at the most when I completely stopped on the side of the freeway (keep in mind I live in Phoenix and it was 114 today). I got home and let the car sit. One of my friends came over and was looking at the car with me. My antifreeze is an orange color and is full. And there is a puddle of green fluid under the vehicle on the passenger side close to under the air intake.

I googled to try and find an answer to this and searched a few forums (this one included) and all I could find is possible information on my heater core being bad and leaking water inside of the vehicle on the passenger floor board.

Any help or advice would be greatly appreciated.
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post #2 of 7 (permalink) Old 06-26-2012, 07:08 PM
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The green liquid is your refrigerant from your A/C system. They add green dye to it so you will see it if it starts to leak. You my friend blew a refrigerant line or fitting let go. You will need a smoke pressure test done to find out where.

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post #3 of 7 (permalink) Old 06-26-2012, 07:28 PM Thread Starter
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Thank you for the info. It should still be safe to drive right?
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post #4 of 7 (permalink) Old 06-26-2012, 07:38 PM
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Yep. But it will be a little warm in the car.

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Last edited by Coby7; 06-27-2012 at 02:31 AM.
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post #5 of 7 (permalink) Old 06-26-2012, 07:40 PM Thread Starter
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Yeah. It already hasn't been working very well anyways. So I think I can manage. Music with the windows down is always better anyways.
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post #6 of 7 (permalink) Old 06-28-2012, 08:21 PM
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could be O-rings have mashed out in the hose line fittings..I would start where the leak is and find out what type of fitting is there with that many miles your orifice filter could be clogged and causing high pressures in the ac cooling lines. most people do not even know about the orifice tube filter and never service them. Dont forget that your a/c system is under pressure...so I would not crack a line without having refrigerant sucked out. Coby is right on the money...the green is a dye they use to find leaks.
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post #7 of 7 (permalink) Old 07-08-2012, 06:25 PM
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My Just blew a line the other day the car is 2008 with only 30,000 km on the car. Is there anyway help to prolong the ac system.
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