Diagnosing a Bad Toyota Corolla Water Pump By Ear! 🔊 and Replacement (Step-By-Step)

That loud, annoying engine noise on this Toyota Corolla gave it away instantly! In this video, we diagnose a failing water pump by ear and replace it with an OEM-grade Aisin unit to get this engine running quietly and reliably again. If your Corolla is making a grinding, whining, or squealing sound from the serpentine belt area, your water pump bearings might be shot. 👇 PARTS & TOOLS USED IN THIS VIDEO: • Aisin Water Pump for Toyota Corolla • Toyota Genuine Pink Coolants • Mechanic Tool Set • Magnetic Work Light ⏱️ TIMESTAMPS: 0:10 - The Bad Engine Noise (Diagnosis) 1:12- Draining the Coolant 2:30 - Removing the Serpentine Belt & Pulley 4:00 - Out With the Old Water Pump 5:45 - Prepping the Block & Gasket Surface 7:15 - Installing the New Aisin Water Pump 9:00 - Refilling Coolant & Bleeding Air 12:00 - Quiet Engine Start & Wrap Up 💬 What kind of noise is your Toyota making? Drop a comment below and let me know the year and mileage of your Corolla! #ToyotaCorolla #AisinWaterPump #MechanicLife #CarRepair #AutoRepair #ToyotaMaintenance #EngineNoise Fixed