how do you tell if your fuel pump is working
easiest way to tell if water pump is working is to run engine until at running temp. then carefully remove radiator cap. with someone slightly reving engine, look into radiator. if the pump and thermostat are working correctly, you will see the coolant moving(circulating) in the radiator
start engine and getr it to running temp. remove radiator cap. look in radiator. if coolant is circulating, the water pump is working. if no movement,pump or thermostat is bad
Use a digital multimeter and test it for resistance.
if your water pump fails, engine will overheat. You will have no heat in vehicle.
If you have oil pressure it is working.
Water pump shaft loose? Water pump leaking? Water circulating in coolant system?
get out of your car find it turn on your car and get out feel the pump if it vibrates it is working if not get a new one
My guess is low or no oil pressure.
It is rare for a water pump not to work however a water pump going bad will leak coolant and can be noisy from bad bearings.
This depends on what engine you are working on.
A fuel pressure test can determine if the pump is working properly or not.