What causes a new water pump to go bad?

Water pumps can fail prematurely due to corrosion inside the cooling system or from an imbalanced water-pump shaft. But in most instances, water pumps fail because of shaft leaks. Excessive tension on a fan belt or serpentine belt also can overload the water-pump shaft bearings and cause the pump to fail.

Can a bad water pump cause intermittent overheating?

The water pump is the main force behind a car’s cooling system allowing it to operate correctly. If the water pump in your car fails, the motive force for the coolant quickly goes away allowing the water in the engine to heat up very quickly and your engine to overheat, possibly causing damage.

Can a bad water pump cause overheating at idle?

Bad Water Pump Over time, the internals of the water pump can wear out, causing coolant flow to cease and allowing the engine to overheat. A new water pump will likely be required to keep the engine running at a safe temperature.

Why is my car overheating then going back to normal?

If the thermostat fails to open the coolant does not flow to the radiator where it would under normal circumstances be cooled and drawn back into the engine to absorb more heat, get pumped back into the radiator to be cooled and drawn back into the engine again.

Why is my car overheating so quickly?

Why Do Engines Overheat? Engines can overheat for many reasons. In general, it’s because something’s wrong within the cooling system and heat isn’t able to escape the engine compartment. The source of the issue could include a cooling system leak, faulty radiator fan, broken water pump, or clogged coolant hose.

Can a leaking water pump cause 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.