Thread: Checking AC
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fastfredracing fastfredracing is offline
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Join Date: Jul 2003
Location: Valencia Pa.
Posts: 8,864
You need a set of gauges . You should see somewhere around 70 -100 psi without the ac on on both high and low side, once you engage the ac low side should drop to around 35 ish,l and high side should be in the 225-250 ish range temp dependent . Sucks on a boxster that you cannot easily look and see if the compressor clutch is engaging .
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Old 08-01-2023, 07:49 AM
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