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· Premium Member
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Assuming the air doors are working correctly and, odds are they are, you should verify your 'seems cooler on one side than the other'.
Use one of those little thermometers that have the long probe that can be inserted into the outlet.
It is normal for the right side to be about 5 to 7 degrees cooler than the left because the evaporator is on the right. Some cooling is lost as the air travels the path to the other side of the dash.
If the temperature varience exceeds 10 degrees, it generally means the system as a whole is not cooling as designed.

You indicate high side pressure is borderline excessive......what are the actual pressure readings at the high side, low side, and what is the ambient temperature when you record these readings?
Your system may be overcharged and a 134a system is rather intolerant of high pressure, shown as inadequate cooling capability.

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