2006 Saturn Vue low on freon but can't put much in

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atikovi
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2006 Saturn Vue low on freon but can't put much in

Postby atikovi » Thu Apr 20, 2017 1:51 pm

Just bought it with the a/c inop. Gauges show around 25 psi so I figure it's just a little low. Connect my drum of freon with a heater and after about 10 minutes it only takes 7 oz. Gauges around 60 low 90 high at 80 degrees. Both lines warm. What should be my next step? It has 220,000 miles so I assume replace the compressor?
Dougflas
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Re: 2006 Saturn Vue low on freon but can't put much in

Postby Dougflas » Thu Apr 20, 2017 5:47 pm

Recover the charge and recharge with proper amount. That way you can eliminate refrigerant charge as a problem. Most AC problems are low refrigerant problems. You could have a stuck control valve in the compressor. Easier to eliminate charge as a troubleshooting step.
atikovi
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Re: 2006 Saturn Vue low on freon but can't put much in

Postby atikovi » Thu Apr 20, 2017 5:58 pm

Was able to add another 10oz with engine at 2,000 rpm and air got cold. Soon as it went to idle it was warm again. Seems like control valve issue.
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Tim
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Re: 2006 Saturn Vue low on freon but can't put much in

Postby Tim » Mon Apr 24, 2017 2:30 pm

Need low and high side pressure readings!!!

Really should reclaim and recharge to proper specs as suggested.
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atikovi
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Re: 2006 Saturn Vue low on freon but can't put much in

Postby atikovi » Mon Apr 24, 2017 3:54 pm

Pressure readings in original post. Will replace the control valve and retest.
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Cusser
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Re: 2006 Saturn Vue low on freon but can't put much in

Postby Cusser » Mon Apr 24, 2017 5:57 pm

Tim is asking about the pressures AFTER you added the additional 10 ounces.
atikovi
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Re: 2006 Saturn Vue low on freon but can't put much in

Postby atikovi » Mon Apr 24, 2017 6:31 pm

Don't remember now, just that they were higher when I reved it, but not much more at idle.

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