How to Determine if the Engine Water Pump is Damaged?

[ElliotDella]

Engine water pump damage manifests with the following symptoms: 1. Unstable idle speed. Water pump failure can increase the resistance to rotation. Since the water pump is connected to the timing belt, increased rotation resistance can directly affect the engine's rotation. At idle, this appears as fluctuating RPM after startup, and in winter, it may even cause the engine to stall. 2. Noise from the engine area. This noise can vary in volume with the engine's rotation speed and generally becomes more pronounced as the fault worsens. 3. Unstable engine coolant temperature. The engine coolant temperature gauge fluctuates within a certain range. Normally, after warming up, the engine coolant temperature should remain at a relatively constant level, around 93°C. 4. Reduced coolant level, poor circulation in the main loop, and engine overheating. This indicates severe water pump damage, and continued driving can directly lead to further engine damage. Solution for engine water pump damage: Replace the engine water pump at a 4S shop or authorized repair facility.