Your high and low side pressures equalize with the system off. The pressures, when off, will be roughly ambient outside temp, 90 degrees = roughly 90-100 psi.
How much of that is air/moisture or freon depends on how well the system was evacuated and charged.
You need to jump the clutch and let it run for a few minutes to see what your pressures are doing. That will tell you if it's a mechanical/plumbing/charge issue or electrical issue.
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Craig Scholl
CJD Automotive, LLC
www.CJDAUTOMOTIVE.com
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Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
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