What is a sign that the water pump is functioning correctly?

A sign that the water pump is functioning correctly is indicated by proper engine temperature. The water pump plays a crucial role in the vehicle's cooling system by circulating coolant through the engine and radiator. When the water pump operates effectively, it ensures that the engine remains within its optimal temperature range, thus preventing overheating or underheating, which can lead to significant engine damage.

If the engine maintains a proper operating temperature, it suggests that coolant is being effectively moved throughout the system, meaning the water pump is likely working as intended. In contrast, issues like leakage around the belts, no pressure in the cooling system, or the check engine light being on could signal problems with the cooling system or the water pump itself. However, proper engine temperature is a direct indicator of the water pump's successful operation.