The bathtub faucet on the cold water side is doing something strange. When I turn the handle, nothing happens until I turn it a little more than half of the way around, then the water comes rushing out all at once. It's not happening on the hot side. This started a few days ago and seems to be getting worse.
I replaced both hot and cold stems and handles several months ago. Not sure if it's related to that but they seemed to be working fine up until now. I took the handles off and don't see any leaks or other strange behavior.
Update: I took a shower today and the cold water side started out working fine. About 5 minutes into the shower, all the cold water went away, and I had to turn the handle really far again to get any cold water. And it was really hard to get just a little cold water. It was either a lot or none at all.
Here's a pic the faucet: