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Water Pump
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What does a water pump do in a car?
The water pump in your vehicle transports coolant from the radiator to the engine and then circulates it back to the radiator, restarting the cycle. This process is essential for maintaining a consistent engine temperature, regardless of external conditions.
As the coolant flows through the engine, it absorbs heat, causing it to warm up. To prevent the engine from overheating, the water pump ensures that the heated coolant is redirected back to the radiator, where it can cool down before re-entering the engine. Without this crucial function, your engine would be at risk of overheating.
Signs of a bad water pump
Signs of a failing or bad water pump in a car include:
- Coolant leak: Puddles of coolant under your vehicle.
- Engine overheating: Consistent high engine temperatures.
- Low coolant levels: Frequent need to add coolant.
- Unusual noise: Grinding, whining, or squeaking sounds from the engine area.
- Heater performance issues: Reduced heat output inside the car.
- Coolant contamination: Milky substance in oil or on the oil cap.
- Steam or smoke: Emanating from the engine compartment.
- Check engine light: Illuminated due to irregular engine temperature.
- Visual inspection: Corrosion, rust, or coolant residue around the water pump.
- Coolant whirlpool: Observable swirl in the radiator when the engine is cool.