Obvious Signs (requiring immediate attention):
* Leaking coolant: This is the most prominent sign. Look for coolant leaks around the water pump itself (located near the timing belt on most Windstars). You'll see a greenish or yellowish fluid dripping or pooling.
* Overheating: The engine temperature gauge climbs into the red zone, or the engine overheats and steam is visible. This is a serious issue and could cause significant engine damage. Do not continue driving if your engine is overheating.
* Loud whining or squealing noise: A high-pitched whine or squeal, especially when the engine is cold and increases with engine speed, is a classic sign of a failing water pump bearing.
Less Obvious Signs (suggesting potential problems):
* Low coolant level: Regularly check your coolant reservoir. A consistently low level, without visible leaks elsewhere, may indicate a leak from the water pump seal.
* White smoke from exhaust: This can indicate coolant leaking into the combustion chambers, possibly due to a failed water pump. This is a more severe symptom.
* Temperature gauge fluctuations: The temperature gauge may fluctuate erratically, even if not reaching the red zone. This could indicate inconsistent coolant flow.
* Rust-colored coolant: Rust in the coolant can indicate internal corrosion, potentially worsened by a failing water pump.
* Rough engine idling or performance: Though not always directly caused by the water pump, inconsistent cooling can impact engine performance.
Important Considerations:
* Age and mileage: Water pumps typically last 80,000-100,000 miles, but this can vary. If your Windstar is nearing or exceeding that mileage, it's a good idea to inspect the water pump.
* Regular maintenance: Regular inspections during oil changes or other maintenance checks can help catch issues early.
If you suspect your water pump is failing, do NOT delay getting it checked and replaced by a qualified mechanic. Driving with a failing water pump can lead to severe engine damage due to overheating.
