Just wanted to add that there is a little three-way hose on the water pump,
on the earlier models. You will probably have to order it, dont know the
P/N or name of it though. I would replace it though, if you've got the water
pump out.
JC...

3. Check the water pump pulley shaft for bearing play and check for
leaks at the vent hole on the underside of the pump. If problem found,
this is a good time to replace it.