THROTTLE BODY INSTALLATION

Tech Tips

Perform "Inspection After Repairs" after replacing the throttle body with motor Click here.


  1. INSTALL THROTTLE BODY WITH MOTOR ASSEMBLY


    1. A01FUENE01
      Text in Illustration
      *1 Groove
      *2 Protrusion
      A01FTNO Throttle Body Side
      A01FRJI Intake Air Surge Tank Side

      Install a new gasket to the intake air surge tank.

      Tech Tips

      Align the protrusion of the gasket on the intake air surge tank.

    2. Connect the 2 water by-pass hoses to the throttle body.

    3. Install the throttle body with the 4 bolts.

      Torque:
      10 N*m  { 102 kgf*cm, 7 ft.*lbf }

      Tech Tips

      Perform "Inspection After Repairs" after replacing the throttle body with motor Click here.

    4. Connect the throttle body with motor connector.

  2. INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE


    1. A01FRFJE01
      Text in Illustration
      *1 Bump
      *2 Cutout
      *3 Protrusion

      Install the air cleaner cap with air cleaner hose assembly with the 4 clamps and hose clamp.

      Torque:
      4.0 N*m  { 41 kgf*cm, 35 in.*lbf }

      Note


      • Insert the protrusion on the throttle body side hose into the hole of the hose clamp.

      • Align the bump on the throttle body side with the cutout in the hose.

    2. Connect the VSV hose to the air cleaner hose.

    3. Connect the mass air flow meter connector and clamp to the air cleaner.

  3. CONNECT NO. 2 VENTILATION HOSE


    1. A01FV9OE01
      Text in Illustration
      *1 Rib
      *2 Paint Mark

      Align the paint mark of the No. 2 ventilation hose with the rib of the cylinder head cover RH and connect the hose.

    2. A01FUM0E01
      Text in Illustration
      *1 Paint Mark
      *a Top
      *b Front

      Connect the No. 2 ventilation hose to the cylinder head cover with the clamp.

      Tech Tips

      Make sure the direction of the clip is as shown in the illustration.

  4. ADD ENGINE COOLANT

    CAUTION:

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

    Tech Tips

    Before starting the engine to warm up the engine, turn the A/C switch off.


    1. Tighten the 2 cylinder block drain cock plugs.

      Torque:
      13 N*m  { 130 kgf*cm, 9 ft.*lbf }

    2. Tighten the radiator drain cock plug.

    3. Remove the reservoir tank cap and radiator cap.

    4. A01FTHOE01
      Text in Illustration
      *1 B Line

      Add coolant through the radiator reservoir tank filler opening until the coolant reaches the "B" line and install the reservoir tank cap.

      Standard Capacity
      Radiator Core Thickness [mm] Specified Condition
      16 9.4 liters (9.9 US qts, 8.3 Imp. qts)
      27 9.9 liters (10.5 US qts, 8.7 Imp. qts)

      Note

      Never use water as a substitute 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).

    5. Add engine coolant to the coolant filler opening and install the radiator cap.

      Tech Tips

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

    6. Put the engine in inspection mode Click here. [*1]

    7. Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes. [*2]

      CAUTION:


      • Wear protective gloves.

      • Be careful as the radiator hoses are hot.

      • Keep your hands away from the radiator fans.

      Note


      • Immediately after starting the engine, if the radiator reservoir tank does not have any coolant, perform the following: 1) stop the engine, 2) wait until the coolant has cooled down, and 3) add coolant.

      • Do not start the engine when there is no coolant in the radiator reservoir tank.

      • Make sure that the needle does not show an abnormally high temperature.

      • If there is not enough coolant, the engine may overheat.

      Tech Tips


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

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

    8. Stop the engine, and wait until the engine coolant cools down to ambient temperature. [*3]

    9. Check the coolant level in the radiator reservoir tank. [*4]

      Tech Tips


      • If the coolant level is below the "Low" line, add coolant through the radiator reservoir tank filler opening until the coolant reaches the "B" line and repeat steps [*1] through [*4].

      • If the coolant level is above the "FULL" line, drain coolant until the coolant level is between the "FULL" and "LOW" line.

  5. INSPECT FOR COOLANT LEAK

    CAUTION:

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

    Note

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


    1. Remove the reservoir tank cap.

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

    3. Put the engine in inspection mode Click here.

    4. Warm up the engine.

    5. Using a 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 and engine water pump for leaks. If no external leaks are found, check the heater core, cylinder block and cylinder head.

  6. PERFORM INITIALIZATION

    Note

    Be sure to perform this procedure after reassembling the throttle body assembly, removing and reinstalling any throttle body component or replacing the ECM.


    1. Disconnect the cable from the negative (-) auxiliary battery terminal. Wait at least 60 seconds and reconnect the cable.

    2. Connect the GTS to the DLC3 and clear the DTCs Click here.

    3. Put the engine in inspection mode (maintenance mode) Click here.

    4. Start the engine and check that the MIL is not illuminated. After the engine is warmed up, check that the idle speed is within the specified range when the A/C is switched off.

      Standard
      Condition Engine Idle Speed
      A/C switched off 950 to 1050 rpm

      Note


      • If the accelerator pedal is operated, perform the above steps again.

      • Be sure to perform this step with all accessories off.

      • Make sure that park (P) is selected.

    5. Perform a road test and confirm that there are no abnormalities.

  7. INSTALL ENGINE UNDER COVER


    1. Install the engine under cover with the 13 screws and 3 clips.

  8. INSTALL V-BANK COVER SUB-ASSEMBLY


    1. A01FTDYE01
      Text in Illustration
      *1 Tip (Round Portion)

      Attach the 3 clips in the order shown in the illustration to install the V-bank cover.

      Note


      • Securely attach the clips.

      • If the clips are forcibly attached or struck with an object, they may be damaged.

      • Do not apply any oil to the tips (round portions).

  9. INSTALL COOL AIR INTAKE DUCT SEAL


    1. Install the cool air intake duct seal with the 7 clips.

  10. INSTALL ENGINE ROOM SIDE COVER


    1. Install the engine room side cover with the 4 clips.