Throttle Body - Installation

1. Install throttle with motor body assembly

2. Connect water by-pass hose no. 2

3. Connect water by-pass hose

4. Install air cleaner cap sub-assembly with air cleaner hose no. 1

5. Connect cable to negative battery terminal

6. Add engine coolant

7. Check for engine coolant leakage

8. Install cylinder head cover no. 2

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1. Install a new gasket onto the intake manifold.

2. Install the throttle with motor body assembly with the bolt and 3 nuts.

   Torque:

   9.0 N*m{92 kgf*cm, 80 in.*lbf}

3. Install the water filler sub-assembly with hose with the 2 nuts.

   Torque:

   7.5 N*m{76 kgf*cm, 66 in.*lbf}

4. Install the wire harness with bracket with the nut.

   Torque:

   9.0 N*m{92 kgf*cm, 80 in.*lbf}

5. Connect the throttle with motor body assembly connector.

1. Connect water by-pass hose No. 2.

1. Connect the water by-pass hose.

1. Install air cleaner cap sub-assembly with air cleaner hose No. 1.

2. Tighten the hose clamp to the specified torque.

   Torque:

   3.0 N*m{31 kgf*cm, 27 in.*lbf}

3. Connect the wire harness clamp and mass air flow meter connector.

4. Connect ventilation hose No. 2.

5. Connect the vacuum switching valve assembly connector and wire harness clamp.

6. Connect fuel vapor feed hose No. 1 and fuel vapor feed hose No. 2 to the vacuum switching valve assembly.

Torque:

5.4 N*m{55 kgf*cm, 48 in.*lbf}

1. Tighten all the plugs.

2. Pour engine coolant into the radiator assembly until it overflows.

   Capacity:

   M/T 4.8 liters (5.1 USqts, 4.5 lmp. qts)
   

   A/T 4.7 liters (5.0 USqts, 4.4 lmp. qts)
   

   NOTICE:

   Do not substitute water for engine coolant.

   HINT:

   1. Use of improper engine coolant may damage the engine coolant system.
      
   2. Use only Toyota Super Long Life Coolant or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate engine coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology consists of a combination of low phosphates and organic acids).
      

3. Check the engine coolant level inside the radiator assembly by squeezing the inlet and outlet radiator hoses several times by hand. If the engine coolant level goes down, add engine coolant.

4. Install the radiator cap sub-assembly securely.

5. Slowly pour engine coolant into the radiator reservoir until it reaches the FULL line.

6. Warm up the engine until the cooling fan operates.
   

   1. Set the air conditioning as follows while warming up the engine.
      

      Item	Manual air conditioning system	Automatic air conditioning system
      Set control as follows	Fan speed - Any setting except "OFF" Temperature - Toward WARM Air conditioning switch "OFF"	Fan speed - Any setting except "OFF" Temperature - To the highest temperature Air conditioning switch "OFF" "AUTO" switch "OFF"

   2. Maintain the engine speed at 2,000 to 2,500 rpm and warm up the engine until the cooling fan operates.

7. Stop the engine and wait until the coolant cools down.

8. If the engine coolant level is below the full level, perform steps (b) through (g) again and repeat the operation until the engine coolant level stays at the full level.

9. Recheck the engine coolant level inside the radiator reservoir tank assembly. If it is below the full level, add the engine coolant.

10. Visually check for engine coolant leakage.

CAUTION:

To avoid the danger of being burned, do not remove the radiator cap sub-assembly while the engine and radiator assembly are still hot. Thermal expansion will cause hot engine coolant and steam to blow out from the radiator assembly.

1. Fill the radiator assembly with engine coolant, then attach a radiator cap tester.

2. Pump the tester to 137 kPa (1.4 kgf/cm², 19.9 psi), then check that the pressure does not drop.
   If the pressure drops, check the hoses, radiator assembly and water pump assembly for leakage. If there are no signs or traces of external engine coolant leakage, check the heater core, cylinder block and head.

1. Tighten 2 A nuts, then 2 B nuts .

   Torque:

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