COOLANT REPLACEMENT

PROCEDURE


  1. DRAIN ENGINE COOLANT

    CAUTION:

    Do not remove the radiator cap sub-assembly or radiator drain cock plug while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.


    1. A0028LU

      Remove the 4 bolts and 2 clips.

    2. Pull down the No. 1 engine under cover.

    3. A002C1GC01
      *1 No. 1 Engine Under Cover
      *a Hose

      Connect a hose with an inside diameter of 9 mm (0.354 in.) to the radiator drain cock as shown in the illustration.

    4. A0029AJC01
      *1 Radiator Cap Sub-assembly
      *2 Radiator Drain Cock Plug

      Loosen the radiator drain cock plug.

    5. Remove the radiator cap sub-assembly. Then drain the engine coolant.

      Tech Tips

      Collect the engine coolant in a container and dispose of it according to the regulations in your area.

    6. Tighten the radiator drain cock plug by hand.

    7. Disconnect the hose from the radiator drain cock.

    8. Install the 4 bolts and 2 clips.

  2. ADD ENGINE COOLANT


    1. Slowly fill the radiator assembly with engine coolant.

      Specified Capacity
      9.8 liters (10.4 US qts, 8.6 Imp.qts)

      Note

      Do not substitute plain water for engine coolant.

      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).

    2. Remove the reserve tank cap.

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

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

      If the engine coolant level is low, add engine 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 engine 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 No. 2 radiator hose.

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

      3. Squeeze the No. 1 radiator hose and No. 2 radiator hose several times by hand to bleed air from the cooling system.

        CAUTION:

        When squeezing the No. 1 radiator hose and No. 2 radiator hose:


        • Wear protective gloves.

        • Be careful as the No. 1 radiator hose and No. 2 radiator hose are hot.

        • Keep your hands away from the fan and No. 2 fan.

        Note


        • Make sure that the radiator reserve tank assembly still has some engine 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 engine coolant, the engine may overheat or be seriously damaged.

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

  3. INSPECT FOR COOLANT LEAK

    Click here