THROTTLE BODY INSTALLATION

INSTALL THROTTLE BODY GASKET
1. Text in Illustration
  
  *a Protrusion
  
  Install a new throttle body gasket to the intake manifold with the protrusion of the throttle body gasket oriented as shown in the illustration.
INSTALL THROTTLE BODY WITH MOTOR ASSEMBLY
1. Connect the No. 2 water by-pass hose and No. 3 water by-pass hose to the throttle body with motor assembly and slide the 2 clips to secure them.
2. Install the throttle body with motor assembly to the intake manifold with the 4 bolts.
  
  Torque:
  
  10 N*m { 102 kgf*cm, 7 ft.*lbf }
  
  Note
  
  If the throttle body with motor assembly has been struck or dropped, replace it.
3. Connect the throttle body with motor assembly connector.
INSTALL AIR CLEANER CAP WITH AIR CLEANER HOSE
1. Connect the air cleaner cap with air cleaner hose to the throttle body with motor assembly.
2. Install the air cleaner cap with air cleaner hose with the 2 guides and 2 air cleaner cap clamps.
3. Tighten the hose clamp.
4. Connect the union to connector tube hose to the air cleaner hose sub-assembly.
5. Engage the wire harness clamp.
6. Connect the mass air flow meter sub-assembly connector.
7. Engage the ventilation hose clamp.
8. Connect the ventilation hose to the cylinder head cover sub-assembly and slide the clip to secure it.
ADD ENGINE COOLANT
1. Tighten the radiator drain cock plug by hand.
2. Slowly fill the radiator assembly with engine coolant.
  
  Specified Capacity
  
  7.3 liters (7.7 US qts, 6.4 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 damaging 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. Remove the reserve tank cap.
4. Slowly pour engine coolant into the radiator reserve tank assembly until it reaches the full line.
5. 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.
6. Install the radiator cap sub-assembly and reserve tank cap.
7. 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
    - If the coolant temperature gauge indicates an excessive temperature, turn off the engine and let it cool.
    - Make sure that the radiator reserve tank assembly still has some engine coolant in it.
    - If the radiator reserve tank assembly does not have 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.
8. Stop the engine, and wait until the engine coolant cools down.
9. Add engine coolant to the full line on the radiator reserve tank assembly.
INSPECT FOR COOLANT LEAK
1. Remove the radiator cap sub-assembly.
2. Text in Illustration
  
  *a Radiator Cap Tester
  
  Fill the radiator assembly with engine coolant, and then install a radiator cap tester.
3. Warm up the engine.
4. Pump the radiator cap tester to 118 kPa (1.2 kgf/cm², 17 psi), and then check that the pressure does not drop.
  - If the pressure drops, check the hoses, radiator assembly and engine water pump assembly for leaks.
  - If there are no signs of external engine coolant leaks, check the heater core, cylinder block sub-assembly and cylinder head sub- assembly.
5. Remove the radiator cap tester.
6. Install the radiator cap sub-assembly.
INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY
1. Engage the 3 grommets to install the No. 1 engine cover sub-assembly.
PERFORM INITIALIZATION
Note
- Be sure to perform this procedure after removing and reinstalling the throttle body with motor assembly or any throttle body with motor assembly components.
- Perform the following procedure after replacing the throttle body with motor assembly or any throttle body with motor assembly components. The following procedure should also be performed if the throttle body with motor assembly is cleaned.
1. Connect the GTS to the DLC3.
2. Clear the DTCs Click here.
3. Perform "Inspection After Repair" 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 with the A/C switch off.
  
  Standard
  
  600 to 700 rpm
  Note
  - Be sure to perform this step with all accessories off.
  - Make sure that the shift lever is in N or P.
5. Enter the following menus: Powertrain / Engine / Data List / Throttle Sensor Position.
6. Fully depress the accelerator pedal and check that the value is 60% or higher.
7. Perform a road test and confirm that there are no abnormalities.