THROTTLE BODY > INSTALLATION

for Preparation Click here

1. Install a new gasket onto the intake manifold.
   

2. Install the throttle body assembly with the 2 bolts and 2 nuts.
   

   Torque:

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

3. Connect the 2 water by-pass hoses and throttle body connector.
   

1. Install the air cleaner hose assembly and lock the hose clamp.
   

2. Connect the ventilation hose.
   

1. Install the air cleaner case with the 2 bolts.
   

   Torque:

   7.0 N*m{ 71 kgf*cm , 62 in.*lbf }

2. Install the water hose to the hose clamp.
   

3. Install the air cleaner filter element sub-assembly.
   

1. Install the inlet air cleaner assembly to the air cleaner case.
   

2. Install the inlet air cleaner assembly with the 2 bolts and 2 clips.
   

   Torque:

   7.0 N*m{ 71 kgf*cm , 62 in.*lbf }

3. Connect the wire harness clamp to the inlet air cleaner assembly.
   

4. Install the water hose to the hose clamp.
   

1. Install the air cleaner cap sub-assembly with the 2 clamps.
   

2. Tighten the hose clamp.
   

3. Connect the mass air flow meter connector.
   

4. Connect the wire harness clamp.
   

1. Tighten the radiator drain cock plug.
   

2. Add coolant to B line of the reserve tank.
   

   Text in Illustration 

   *1

   B Line

   Standard Capacity:

   Item	Capacity
   Engine coolant	w/ Exhaust Heat Recirculation System: 6.9 liters (7.3 US qts, 6.1 lmp. qts)
   	w/o Exhaust Heat Recirculation System: 6.5 liters (6.9 US qts, 5.7 lmp. qts)

   HINT:

   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).

   NOTICE:

   Never use water as a substitute for engine coolant.

3. Squeeze the radiator hoses several times by hand, and then check the level of the coolant.
   If the coolant level is low, add coolant.
   

4. Put the engine in inspection mode (Click here).
   

5. Install the reserve tank cap.
   

6. Bleed air from the cooling system.
   

   NOTICE:

   1. Before starting the engine, turn the A/C switch off.
      
   2. Adjust the heater control to the maximum hot setting.
      
   3. Adjust the blower speed to the low setting.
      
   
   

   1. Warm up the engine until the thermostat opens. While the thermostat is open, allow the coolant to circulate for several minutes. (●1)
      

      HINT:

      The thermostat opening timing can be confirmed by squeezing the inlet radiator hose by hand, and sensing vibrations when the engine coolant starts to flow inside the hose.

      CAUTION:

      When squeezing the radiator hose:

      1. Wear protective gloves.
         
      2. Be careful as the radiator hoses are hot.
         
      3. Keep your hands away from the radiator fans.
         

   2. Stop the engine and wait until the coolant cools down. Then if the coolant level is below the low line, add coolant so that the level will be between the full and low lines. (●2)
      

   3. Repeat the steps from (●1) to (●2) until the coolant level of the reserve tank remains above the low line.
      

7. After the engine has cooled down, check that the coolant level is between the full and low lines.
   

   Text in Illustration 

   *1	Full Line
   *2	Low Line

   If the coolant level is low, add coolant to the full line on the reserve tank.
   

CAUTION:

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

NOTICE:

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

1. Remove the reserve tank cap.
   

2. Fill the reserve tank with coolant, and then 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 108 kPa (1.1 kgf/cm², 16 psi), and check that the pressure does not drop. If the pressure drops, check the hoses, radiator, front exhaust pipe assembly, the heater hose around the engine coolant temperature sensor and engine water pump assembly for leaks. If no external leaks are found, check the heater core, cylinder block and cylinder head.
   

6. Remove the radiator cap tester.
   

7. Install the reserve tank cap.
   

1. Engage the 3 clips to install the cover.
   

   NOTICE:

   1. Be sure to engage the clips securely.
      
   2. Do not apply excessive force or hit the cover to engage the clips. This may cause the cover to break.
      

1. Install the radiator support opening cover with the 9 clips.
   

NOTICE:

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 intelligent tester to the DLC3 and clear the DTCs (Click here).
   

3. Set the vehicle to inspection mode (Click here).
   

4. Start the engine without operating the accelerator pedal and check that the MIL is not illuminated and that the idle speed is within the specified range when the air conditioning is switched off after the engine is warmed up.
   

   Standard:

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

   NOTICE:

   1. If the accelerator pedal is operated, perform the above steps again.
      
   2. Be sure to perform this step with all accessories off.
      
   3. Make sure that park (P) is selected.
      

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