Look inside the valve and see if something's blocking a port in the body of valve.
Did you turn down the flow controls on the valves?
Maybe the valve is working and there's a break in the line.
A squeek isn't necessarily a good thing. A squeek to me means the diaphram is going bad.
I looked inside, the bottom half of the valve had an in and an out, not much to clean, but i did rinse it out really well. I did not initially adjust the flow control valve, but i tried turning it all over, but it didnt remedy my situation.
If there was a break in the line, would i see water seeping out some where?
For some reason, all of the valve sqeal as they shut, hopefully it's normal
Thanks for your help