From what I could interpret from you wrote above it sounds like it is the supercharger intercooler pump. It is located at the passaanger side very front bottom corner. Check the fuse for the pump, do a search for what fuse number it is and where it is located. To get access to the pump you will have to remove the wheel well cover/linning to see it. You can pull the pump, rev the car above 2,000 rpm and it should turn on.
180 has a great thread that is stickied in the forum.
https://www.crossfireforum.org/forum...s-repairs.html
Others have great write ups too. Take your time and do a search and read. It is worth your time on this forum, lots of good advice from mature experienced folks.