What are the symptoms of a damaged car water pump?

[CarolineFitz]

Here are the symptoms of a damaged engine water pump: 1. Cooling system failure: This can cause issues such as the heater not producing hot air, unstable engine coolant temperature, or a reduction in coolant leading to poor engine circulation and overheating. 2. Noise from the engine area: A friction sound may occur as the engine rotates, and the volume may change with engine speed. Typically, the more severe the fault, the more noticeable this noise becomes. 3. Unstable idle: Increased resistance in the water pump's rotation can directly affect the engine's operation. This manifests as fluctuations in engine speed after starting the car, and in winter, it may even cause the engine to stall.