A/C issue

[usgregp]

2016, 6.0. A/c worked normal until compressor locked up. Innstall new compressor. Now no power to clutch. With engine running, full AC command with lights on climate control panel on, A/C fan going to full speed, no power to compressor. No blown fuses, a/c relay not energizing. Pulled relay and is working when 12 volts applied. No power anywhere in relay socket. I applied 12 volts to output terminal in relay socket and clutch energized and compressor ran, eliminating pressure switch being an issue.  Suction pressure only dropped from 96psig to 84psig. Any thoughts?

[txab]

Thoughts? Lots. What did you replace besides compressor? If your compressor actually trashed itself, there is all kinds of trash in the sytem. If clutch bearing cratered then you're better off. Did you pull the system into a vacuum, checking for leaks and removing non-condensables in the system

[usgregp]

I only replaced compressor.  I triple evac to 1000 microns, breaking vacuum each time with 134.