This part should be replaced when replacing the A/C compressor. here are the instructions on how to do the job and to help walk you through the steps in the images below. You will need to vacuum down and recharge the system.
This guide can help with that:
Check out the images (below). Please let us know if you need anything else to get the problem fixed.
Images (Click to enlarge)
Monday, May 1st, 2023 AT 10:54 AM