AC Compressor Clutch Not Working on 1995 GMC Vandura 2500

I have recently replaced the ac compressor, now the clutch is not working. I have feel like I have tried everything, even some new connectors, what is going on and why will the compressor not kick on??

by in Killeen, TX on July 10, 2010
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1 answer
ANSWER by , August 06, 2011
need to replace high or low pressure cut off switch , or bypass them with wire.