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Old 07-19-2013, 07:22 PM
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astroman54 astroman54 is offline
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Ahh.. You're talking PSI, not lbs.. When the compressor starts, the low pressure side should drop and the high pressure readings should go up.. The pressures need to correlated to the ambient temperature.. See the link here for a better explaination and PSI chart.

http://www.idqusa.com/faqs.php?faq=7...category_id=18

Andy
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2009 Dodge Ram 1500 Sport Deep Water Blue Crew Cab Hemi 4x4
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