AC Pressure readings - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat
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Old 06-09-2007, 12:40 PM   #1
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Default AC Pressure readings

What is the optimum guage readings for an AC system? I just tested mine and it appeared a little off. The low side read @ 45-50 psi and the high side read @ 145-150. Outdoor temp is about 80-85 degrees.
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