Sometimes when the bearing in the water pump is going, you can feel thre play in it with the engine stopped. Grasp the fan and try to wiggle it sideways, sort of tilting it. If you can do that, it probably needs to be changed

1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed

My Chevy Master 4 Door is on the Road!