Genuine Toyota Corolla Water Pump

Toyota Corolla Water Pump Parts Questions & Answers

• Engine Water Pump Assembly
  16100-09170
  Q: What are the signs of water pump failure and how can it be checked?

  A: A failure in the water pump can result in severe engine damage due to overheating. To check its functionality, start the engine and let it warm up to normal operating temperature. Squeeze and release the upper radiator hose to feel for a pressure surge, indicating proper water pump operation. Look for coolant leakage from the weep or vent holes located behind the pulley just below the water pump shaft. A howling sound from the front of the engine may indicate water pump shaft bearing failure, which can be checked by rocking the water pump pulley for any play. Ensure not to mistake drive belt slippage for water pump failure, as applying automotive drive belt dressing can help eliminate belt noise.
• Engine Water Pump Assembly
  16100-29146
  Q: How to remove and install a water pump?

  A: To remove the water pump, first disconnect the cable from the negative terminal of the battery. Next, drain the cooling system. Remove the engine drivebelt and the alternator. Proceed by removing the bolts that secure the water pump and carefully take it out, noting the length and position of the bolts for reinstallation. Thoroughly clean all sealing surfaces and remove the O-ring from the groove in the timing chain cover. To install, begin by placing a new O-ring in the timing chain cover and positioning the water pump in place. Install the bolts in their original positions and tighten them to the specified torque. Finally, reinstall the remaining parts in the reverse order of removal. Refill the system and check for any issues with the water pump.