If a water pump is bad they usually leak coolant
If the water pump is bad ussually the heater will stop giving hot air .
Water pump shaft loose? Water pump leaking? Water circulating in coolant system?
it wont work
if you are talking about the weep hole in the water pump. that hole will let water out when the seals in the water go bad. that will tell you to get the water pump replaced.
It makes alot of noise and overheats, leaks out of bottom of pump
your car will overheat, there will be low pressure on your system.
thay usually leak at the bottom of pump out the releif hole. or if it is noisier than usual it can go bad.
Water leak at weep hole at bottom of water pump? Shaft loose? Bearing noise or wobble when engine is running?
Somewhere on the underside of the pump near where the shaft that the pulley is mounted on, there will be a small hole in the pump. This is called a weep hole and water will leak out of there slowly if you have a bad pump.
from a non-mechanic but usually there is some coolant leakage
The most obvious symtom would be overheating of the engine.