WATER PUMP INSTALLATION


  1. INSTALL ENGINE WATER PUMP ASSEMBLY


    1. Install a new gasket and the engine water pump with the 7 bolts.

      Torque:
      21 N*m  { 214 kgf*cm, 15 ft.*lbf }
  2. INSTALL V-RIBBED BELT TENSIONER ASSEMBLY


    1. A01HYJ6

      Install the V-ribbed belt tensioner with the bolt.

      Torque:
      21 N*m  { 214 kgf*cm, 15 ft.*lbf }
  3. INSTALL GENERATOR ASSEMBLY

    Click here

  4. INSTALL V-RIBBED BELT

    Click here

  5. ADD ENGINE COOLANT


    1. Tighten the radiator drain cock plug by hand.

    2. Slowly fill the radiator with TOYOTA Super Long Life Coolant (SLLC).

      Note

      Never use water as a substitute for engine coolant.

      Specified capacity
      7.3 liters (7.7 US qts, 6.4 lmp. qts)

      Tech Tips

      TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids).

    3. Slowly pour coolant into the radiator reserve tank assembly until it reaches the full line.

    4. Squeeze the No. 1 and No. 2 radiator hoses several times by hand, and then check the level of the coolant.

      If the coolant level is low, add coolant.

    5. Install the radiator cap sub-assembly and reserve tank cap.

    6. Bleed air from the cooling system.

      Note


      • Before starting the engine, turn the A/C switch off.

      • Adjust the heater control to the maximum hot setting.

      • Adjust the blower speed to the low setting.


      1. Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes.

        Tech Tips

        The thermostat open timing can be confirmed by squeezing the No. 2 radiator hose by hand, and sensing vibrations when the engine coolant starts to flow inside the hose.

      2. Maintain the engine speed at 2500 to 3000 rpm.

      3. Squeeze the No. 1 and No. 2 radiator hoses several times by hand to bleed air.

        CAUTION:

        When squeezing the radiator hoses:


        • Wear protective gloves.

        • Be careful as the radiator hoses are hot.

        • Keep your hands away from the cooling fans.

        Note


        • Make sure that the radiator reserve tank assembly still has some coolant in it.

        • If the coolant temperature gauge indicates an excessive temperature, turn off the engine and let it cool.

        • If there is not enough coolant, the engine may overheat or be seriously damaged.

        • If the radiator reserve tank assembly does not have enough coolant, perform the following: 1) stop the engine, 2) wait until the coolant has cooled down, and 3) add coolant until the reserve tank assembly is filled to the full line.

    7. Stop the engine and wait until the engine coolant cools down.

    8. Add engine coolant to the full line on the radiator reserve tank assembly.

  6. INSPECT FOR COOLANT LEAK

    Note

    Before performing each inspection, turn the A/C switch off.


    1. A01I0PU

      Fill the radiator with coolant and attach a radiator cap tester.

    2. Warm up the engine.

    3. Using a radiator cap tester, increase the pressure inside the radiator to 118 kPa (1.2 kgf/cm2, 17 psi), and check that the pressure does not drop.

      If the pressure drops, check the hoses, radiator and water pump for leaks. If no external leaks are found, check the heater core, cylinder block and cylinder head.