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  #31  
Old 09-21-2012, 01:07 AM
herler herler is offline
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Join Date: Apr 2012
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I do want to warn you, even a tiny drop of freon in your eye causes instant and permanent blindness.

The system is under a LOT of pressure even when it's low on freon but I'm going to laugh pretty hard if in the end it turns out your system is low on freon because I can tell you all this hours of intricate labor discussion isn't doing a dang bit of good until all the simple things have been diagnosed off the list, you don't know what the problem is, we start with the easy stuff, otherwise we might as well plan a trip to the moon.

Chances are good that to replace that stupid actuator door you're going to have to pull the dashboard and remove the whole big bad $500 box and take it apart much like you would if you were replacing either heater core or evaporator, which is why they quoted you $180 for the labor, proper tools and know how it will take the experienced mechanic two hours, but you do it yourself and you can plan the entire afternoon.

Now get yourself a set of gauges to measure pressure on low/high side of the a/c system, then check that your system has enough pressure.
That's always the first thing, when the system isn't cooling, make sure it has freon and that it is cycling like it should.

Last edited by herler; 09-21-2012 at 01:14 AM.
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  #32  
Old 09-21-2012, 05:48 AM
ChuckPMi ChuckPMi is offline
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Join Date: Jun 2010
Location: Adrian, MI
Posts: 44
Your system is out of freon. Freon was the trade name for R12 and it was last used for cars in 1993. Vehicles now use R134a as a refrigerant. If you were low on refrigerant BOTH sides would not be cool, would also not be hot when the temperature control slide was set on cool, would have about the same temperature for the same setting, and would not fluctuate wildly. Your problem of ONE side sometimes going to full hot is not a refrigerant problem.
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  #33  
Old 09-21-2012, 07:12 PM
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ed2hess ed2hess is offline
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Join Date: Nov 2002
Location: Austin Texas 78727
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Quote:
Originally Posted by herler View Post
I do want to warn you, even a tiny drop of freon in your eye causes instant and permanent blindness.

The system is under a LOT of pressure even when it's low on freon but I'm going to laugh pretty hard if in the end it turns out your system is low on freon because I can tell you all this hours of intricate labor discussion isn't doing a dang bit of good until all the simple things have been diagnosed off the list, you don't know what the problem is, we start with the easy stuff, otherwise we might as well plan a trip to the moon.

Chances are good that to replace that stupid actuator door you're going to have to pull the dashboard and remove the whole big bad $500 box and take it apart much like you would if you were replacing either heater core or evaporator, which is why they quoted you $180 for the labor, proper tools and know how it will take the experienced mechanic two hours, but you do it yourself and you can plan the entire afternoon.

Now get yourself a set of gauges to measure pressure on low/high side of the a/c system, then check that your system has enough pressure.
That's always the first thing, when the system isn't cooling, make sure it has freon and that it is cycling like it should.
It isn't a freon problem the unit works fine on passenger side all the time. I did find a utube showing of a guy taking this actuator out and of the three this one is the easiest and no dashboard removal. But it did kinda bother me too that they had two hours labor.
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