Engine is overheating When the water pump fails completely, it will not be able to circulate coolant through the engine block. This results in an overheating situation and if not repaired or replaced quickly, can cause additional engine damage like cracked cylinder heads, pushed head gaskets, or burnt pistons.Click to see full answer. Consequently, can you drive a car with a bad water pump?Hey there, To answer your first question, yes, it is very possible to drive a car without a water pump. If you plan on keeping your car, then you definitely need to have a new water pump installed, flush out the coolant system, and make sure all the coolant hoses are clean and free of holes.Furthermore, what happens when water pump goes out while driving? Catastrophic failure of your water pump will cause either a complete or partial loss of coolant flow and rapid overheating. If this happens to your vehicle, it may be accompanied by engine noise or a broken engine belt, but will definitely result in your engine temperature gauge rising quickly. Regarding this, can a bad water pump cause no heat? Check the Thermostat If your car has not been overheating or running hot, your water pump is not the culprit. If a thermostat is stuck in the closed position, it will never allow coolant to circulate fully, so no heat for you. You can fix this problem by removing the lower radiator hose and installing a new thermostat.What noise does a bad water pump make?When the water pump bearings go out it will cause a squeaking, ticking or grinding noise while the engine is running. This is because the shaft bearings are trying to lock up within the pump housing. This bearing failure is due to the pressure being applied by the serpentine belt or the timing belt.