Denny,
I would think the easy answer is yes.
Suggest you clean off and dry the moisture present and recheck to see if leaking from the shut off valve stem area, the valve to adapter bushing joint, or both.
To fix a minor seep at the valve stem, it could be as easy as slightly tightening the packing nut surrounding the valve stem. There should be a packing under that collar nut that gets compressed around the valve stem to prevent leakage, but still allow the valve to operate. They do wear over time and can often just be re-compressed with a small turn of that packing nut.
For the leak at the valve to adapter bushing joint, you will need to drain down your coolant to remove the valve, clean up the mating surfaces and applies some plumbing pipe dope to the threads which should seal the threads (if they aren't damaged or corroded).
Let us know what you figure out please.
Dan
EDIT - Kevin beat me to the punch - LOL!
Last edited by Gdads51; 09/19/2023 3:09 PM. Reason: update