COOLANT REPLACEMENT


  1. TILT UP CAB

    CAUTION:


    • Make sure that the vehicle is on a level surface before tilting the cab up.

    • Make sure that all the doors are closed before tilting the cab up.

    • Make sure that nobody is inside or near the cab when tilting it up.

    • Be sure to have 2 people tilt the cab up when a heavy object such as a roof rack or cargo carrier is installed to the cab.

    • Be sure to remove anything set on top of the cab before tilting it up.

    • Make sure that the cab is securely locked in place after it is tilted up.

    • Make sure that there are no tools, cloths, etc. left in the engine room before tilting the cab back down.

    • Make sure that the cab is securely locked in place after tilting it back down.

  2. DRAIN ENGINE COOLANT

    CAUTION:

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


    1. A01CGQLE01
      Text in Illustration
      *1 Radiator Cap Sub-assembly
      *2 Radiator Drain Cock Plug
      *3 Engine Drain Plug
      *4 Radiator Reservoir Assembly

      Loosen the radiator drain cock plug and engine drain plug.

    2. Remove the radiator cap sub-assembly, and then drain the coolant.

      Tech Tips

      Collect the coolant in a container and dispose of it according to the local regulations.

    3. Tighten the radiator drain cock plug by hand.

    4. Tighten the engine drain plug.

      Torque:
      27 N*m  { 275 kgf*cm, 20 ft.*lbf }
  3. ADD ENGINE COOLANT

    CAUTION:

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

    Note

    Do not substitute plain water for engine coolant.


    1. Add engine coolant.

      Standard capacity
      14.2 liters (15.0 US qts, 12.5 Imp. 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).

    2. Check the coolant level inside the radiator by squeezing the inlet radiator hose and outlet radiator hose several times by hand. If the coolant level goes down, add coolant.

    3. Install the radiator cap sub-assembly.

    4. Slowly pour coolant into the radiator reservoir until it reaches the F line.

    5. Bleed air from the cooling system.


      1. Warm up the engine until the thermostat opens.

        While the thermostat is open, circulate the coolant for several minutes.

      2. Maintain the engine speed at a speed between 2500 and 3000 rpm.

      3. Press the inlet and outlet radiator hoses several times by hand to bleed air.

        Note


        • Wear protective gloves.

        • Be careful as the radiator hoses are hot.

        • Keep your hands away from the radiator fan.

    6. Stop the engine and wait until the coolant cools down to ambient temperature.

    7. Remove the radiator cap sub-assembly and check the coolant level.

      If the coolant level has dropped, add coolant.

    8. Check the coolant level inside the radiator reservoir assembly again.

      If the coolant level is below the F line, add coolant to F line.

  4. INSPECT FOR COOLANT LEAK

    CAUTION:

    Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

    Note

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


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

    2. Warm up the engine.

    3. Using the radiator cap tester, increase the pressure inside the radiator to 137 kPa (1.4 kgf/cm2, 20 psi), and check that the pressure does not drop.

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