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AC gauges and readi...
 
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AC gauges and reading

  

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My gauges are Reading Low side 35 and High side 125. What can it be? What about the top valve on the AC gauge are they suppose to be open or closed?


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What is the ambient temperature? That will greatly affect readings. I'm not sure what you mean by the "top valve".

You can use these charts as guides:

https://www.rechargeac.com/how-to/ac-system-pressure-chart/

https://nissens.com/Admin/Public/Download.aspx?file=Files%2FFiles%2FAuto%2FPosters%2FNissens_AC_System_Diagnostics_Poster_98x68+-+Operating+Pressures+R134A+-+ENG.pdf

 


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