Inspect Water Pump

a. Visually check the air hole and water hole for coolant leakage.

If leakage is found, replace the water pump and timing belt.

b. Turn the pulley, and check that the water pump bearing moves smoothly and quietly. If necessary, replace the water pump.

2006 ENGINE Cooling - Sequoia

Fig. 7: Checking Air & Water Hole For Coolant Leakage Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

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