Obvious Signs (requiring immediate attention):
* Loud squealing or whining noise: This is a classic symptom of a failing water pump bearing. The noise often gets louder as the engine warms up.
* Overheating: The engine temperature gauge climbs rapidly or consistently runs high. This is a serious problem and can lead to engine damage if ignored. Look for steam or smoke coming from the engine compartment.
* Visible coolant leak: Look for puddles under your car, particularly near the water pump (located on the engine, typically driven by a belt). You might see streaks of coolant on the engine or a milky substance in your engine oil (indicating coolant mixing with oil).
* Low coolant level: Consistently needing to add coolant is a strong indicator of a leak, possibly from the water pump.
Less Obvious Signs (warrant investigation):
* Weak or erratic heater performance: If the heater in your car isn't blowing hot air as effectively as it used to, especially when the engine is up to temperature, a failing water pump might be responsible, as it's responsible for circulating coolant to the heater core.
* Reduced engine performance: Although less directly linked, a severely overheating engine due to a faulty water pump will cause a loss of power and potentially lead to engine damage.
Important Note: If you suspect your water pump is failing, do not continue to drive the car. Overheating can cause catastrophic engine damage. Have it inspected by a mechanic as soon as possible. Ignoring these signs can lead to costly repairs.
