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Old 06-27-2017, 11:13 PM   #1
vikasevan
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Question 2004 Saturn VUE compressor works but no cold air

Hello again...
2004 Saturn VUE AWD 178k

compressor work but no cold air...both fans work the moment I press AC button

Guage that came with refrigerant shows its in green zone related to ambient temp


When I turn the knob to heat ...it does blow hot air
but in cold position with AC on ..just normal ambient air..not cold air..


Please suggest where would be the problem?

I am guessing air/moisture in the system rather than refrigerant? so even though gauge shows normal level it might be just air and not refrigerant?

If this is the cause...how do I empty that air ..without getting exposed to refrigerant ?

Also I see only low service port ....I dont see high service port....so in this car only one port?

Last edited by vikasevan; 06-27-2017 at 11:18 PM.
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Old 06-28-2017, 12:14 AM   #2
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Default Re: 2004 Saturn VUE compressor works but no cold air

Quote:
Originally Posted by vikasevan View Post
If this is the cause...how do I empty that air ..without getting exposed to refrigerant ?
TAke it to a shop to pull a vacuum on the system , wait awhile to see if it holds vacuum( leak check), then recharge it and set the pressures.
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Old 06-28-2017, 02:04 AM   #3
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Default Re: 2004 Saturn VUE compressor works but no cold air

So there is no high port in these cars?
Only low port ? if so how one can use manifold gauge set?
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Old 06-28-2017, 10:14 AM   #4
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Default Re: 2004 Saturn VUE compressor works but no cold air

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Originally Posted by vikasevan View Post
? if so how one can use manifold gauge set?
By following a service manual, or digging into this forum's search feature.
...
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Old 06-29-2017, 01:42 PM   #5
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Default Re: 2004 Saturn VUE compressor works but no cold air

Don't recall off the top of my head which is which but one is on the right side on the hard line,



and the other on the left in front of the strut tower,



but just from the wording of your post, "If this is the cause...how do I empty that air ..without getting exposed to refrigerant ?" seems you are over your head.
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Old 06-30-2017, 07:56 PM   #6
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Default Re: 2004 Saturn VUE compressor works but no cold air

I'm guessing he gave up?
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Old 06-30-2017, 11:38 PM   #7
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Default Re: 2004 Saturn VUE compressor works but no cold air

I have ordered manifold gauge and vacuum pump ...

atikovi what do u mean ...I am over my head?
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Old 07-01-2017, 07:20 AM   #8
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Default Re: 2004 Saturn VUE compressor works but no cold air

When you say, how do I empty that air ..without getting exposed to refrigerant, it sounds like you don't understand how a sealed refrigeration system works. You don't "empty the air," you vacuum out the entire charge of freon and replace it.
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Old 07-01-2017, 07:28 AM   #9
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Default Re: 2004 Saturn VUE compressor works but no cold air

Oh lol have checked the operation of the blend door?
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Old 07-01-2017, 01:22 PM   #10
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Default Re: 2004 Saturn VUE compressor works but no cold air

Quote:
Originally Posted by atikovi View Post
When you say, how do I empty that air ..without getting exposed to refrigerant, it sounds like you don't understand how a sealed refrigeration system works. You don't "empty the air," you vacuum out the entire charge of freon and replace it.
Yes that was my question.
When I vacuum out Freon..it will be released in environment correct? So I and others will be exposed to that freon?

Since I don't have recovery tank..there is no easy to collect this Freon.
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Old 07-01-2017, 02:03 PM   #11
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Default Re: 2004 Saturn VUE compressor works but no cold air

You need to take it to a shop and have them vacume it down and check for a leak.. then they will inject dye and charge it and check the system operation.. I have to do the same so I can change my expansion valve.. mine only blows at 68 degrees..
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Old 07-20-2017, 08:26 PM   #12
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Default Re: 2004 Saturn VUE compressor works but no cold air

Bought ac manifold kit and pulled vacuum..it did hold vacuum ...for about 15 minutes...I did not have patience to wait any longer...

When I checked low port pressure with this gauge kit ...it shows 45 at low and high at 75 psi...

clutch does engage...

Still no cold air...

Do u think compressor is not working?
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