Draining the A/C system? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 01-28-2009
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Draining the A/C system?

Tried searching and found nothing... What's the best way to drain the A/C system? I'm not trying to save any of the parts. Should I just unbolt one of the connections on the low pressure line so it starts leaking then run?
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Old 01-28-2009
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The proper way is to take it somewhere so they can collect the freon.
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Old 01-28-2009
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Quote:
Originally Posted by fddriver02 View Post
The proper way is to take it somewhere so they can collect the freon.
Yeah, but the truck isn't in a driveable condition and I didn't think ahead of it
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Old 01-28-2009
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Well you could just remove a line and run. Don't breath any of it!
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Old 01-28-2009
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cut the line and let it slowly come out
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Old 01-28-2009
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put thick gloves and long sleeves on and press the schrader valve in with a screwdriver on the low side and hold it until it is empty
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Old 01-28-2009
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Originally Posted by fddriver02 View Post
Well you could just remove a line and run. Don't breath any of it!
Haha that's what I'm thinking. Obviously low pressure side > high pressure side?
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Old 01-28-2009
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Cut and run in a well ventilated area.
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Old 01-28-2009
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yea the "Approved method" is for a shop to evacuate the system. One time I partially unbolted the the low side and let it leak out in the driveway. Where the wind could carry it away. Also put down a bunch of towels bc it will spray everywhere. Just dont breath any in.
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  #10  
Old 01-28-2009
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Without the compressor running in a long time, the low side pressure will equal the high side pressure, so it won't matter which side you open.
The biggest problem, what you are doing is illegal.
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Old 01-28-2009
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Well, problem solved on all fronts. I have a buddy who is a manager at a local shop and he is willing to come and drain the freon if when I finish the project I put his shop's logo or "something amusing" on the doors of the cab for a little advertising :D
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Old 01-28-2009
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R134a is a HFC refrigerant that has zero ozone depletion but the EPA says it does contribute to global warming so you cant vent it.
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