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  1. 2007.5 + (GMT 900) Non Powertrain New Body Style
    Hello! I have a 2007.5 LMM Duramax that we have replaced the Condenser, Compressor and Collector. I am getting 25 on low pressure and 325 on high pressure. I am concerned the high pressure may be to high. Ambient temp is 88 degrees.
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