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Removal & Installation And Disassembly & Reassembly

  1. DRAIN ENGINE COOLANT (See  ENGINE COOLANT (1NZ-FE) (FROM APRIL, 2004)  ) 
  2. REMOVE AIR CLEANER ASSY 
    1. Disconnect the mass air flow meter connector.
    2. Disconnect the VSV connector.
    3. Remove the wire harness clamp.
    4. Disconnect the fuel vapor feed hose No. 2.
    5. Disconnect the ventilation hose.
    6. Disconnect the fuel vapor feed hose No. 1.
    7. Unlock the 2 clamp hooks.
    8. Loosen the hose clamp and remove the air cleaner cap.
      Fig 1: Removing Air Cleaner Assembly (1 Of 2)
      G03096752Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Remove the air cleaner filter element.
    10. Remove the 4 bolts and air cleaner case.
      Fig 2: Removing Air Cleaner Assembly (1 Of 2)
      G03096753Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. SEPARATE ACCELERATOR CONTROL CABLE ASSY 
    1. Loosen the nut and separate the accelerator control cable.
      Fig 3: Loosening Nut And Separating Accelerator Control Cable
      G03096754Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE TRANSMISSION OIL LEVEL GAGE SUB-ASSY (AUTOMATIC TRANSAXLE) 
  5. REMOVE TRANSMISSION OIL FILLER TUBE SUB-ASSY (AUTOMATIC TRANSAXLE) 
    1. Disconnect the throttle position sensor connector.
    2. Disconnect the hose.
    3. Remove the bolt and oil cooler tube clamp.
    4. Remove the bolt and transmission oil filler tube.
    5. Remove the O-ring from the transmission oil filler tube.
    6. Fig 4: Removing Transmission Oil Filler Tube Sub-Assembly (Automatic Transaxle)
      G03096755Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE THROTTLE BODY ASSY 
    1. Disconnect the ISC valve connector.
    2. Disconnect the throttle position sensor connector. (MANUAL TRANSAXLE)
    3. Remove the wire harness clamp.
    4. Remove the bolt and 2 nuts, then remove the accelerator control cable bracket and throttle body.
    5. Remove the gasket from the intake manifold.
      Fig 5: Removing Throttle Body Assembly (1 Of 2)
      G03096756Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Disconnect the water by-pass hose.
    7. Disconnect the water by-pass hose No. 2.
      Fig 6: Removing Throttle Body Assembly (2 Of 2)
      G03096757Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE ISC VALVE 
    1. Remove the 3 screws and ISC valve.
    2. Remove the gasket from the throttle body.
      Fig 7: Removing ISC Valve
      G03096758Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE THROTTLE POSITION SENSOR 
    1. Remove the 2 screws and throttle position sensor.
      Fig 8: Removing Throttle Position Sensor
      G03096759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. INSTALL THROTTLE POSITION SENSOR 
    1. Confirm that the throttle valve is fully closed.
    2. Insert the throttle position sensor into the throttle body, then turn the throttle position sensor 45° clockwise until the throttle valve is in the fully closed throttle position.

    Torque: 2.0 N.m (20 kgf.cm, 17 in.lbf) 

    Fig 9: Installing Throttle Position Sensor
    G03096760Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. INSTALL ISC VALVE 
    1. Install a new gasket onto the throttle body.
    2. Install the ISC valve with the 3 screws.

      Torque: 3.4 N.m (35 kgf.cm, 30 in.lbf) 

  11. INSTALL THROTTLE BODY ASSY 
    1. Connect the water by-pass hose No. 2.
    2. Connect the water by-pass hose.
    3. Install a new gasket onto the intake manifold.
    4. Install the throttle body and accelerator control bracket with the bolt and 2 nuts.

      Torque: 30 N.m (306 kgf.cm, 22 ft.lbf) 

    5. Install the wire harness clamp.
    6. Connect the throttle position sensor connector. (MANUAL TRANSAXLE)
    7. Connect the ISC valve connector.
  12. INSTALL TRANSMISSION OIL FILLER TUBE SUB-ASSY (AUTOMATIC TRANSAXLE) 
    1. Install a new O-ring onto the transmission oil filler tube.
    2. Install the transmission oil filler tube with the bolt.

      Torque: 5.5 N.m (56 kgf.cm, 49 in.lbf) 

    3. Install the oil cooler tube clamp with the bolt.

      Torque: 5.5 N.m (56 kgf.cm, 49 in.lbf) 

    4. Connect the hose.
    5. Connect the throttle position sensor connector.
  13. INSTALL TRANSMISSION OIL LEVEL GAGE SUB-ASSY (AUTOMATIC TRANSAXLE) 
  14. INSTALL ACCELERATOR CONTROL CABLE ASSY 
    1. Install the accelerator control cable as shown in Fig 10.

      Torque: 13 N.m (133 kgf.cm, 10 ft.lbf) 

    Fig 10: Installing Accelerator Control Cable Assembly
    G03096761Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. INSTALL AIR CLEANER ASSY 
    1. Secure the air cleaner case to the air cleaner bracket with the 3 bolts.

      Torque: 7.8 N.m (80 kgf.cm, 69 in.lbf) 

    2. Secure the air cleaner inlet to the engine compartment with the bolt.

      Torque: 7.5 N.m (76 kgf.cm, 66 in.lbf) 

  16. ADD ENGINE COOLANT (See  ENGINE COOLANT (1NZ-FE) (FROM APRIL, 2004)  ) 
  17. CHECK FOR ENGINE COOLANT LEAKS (See  ON-VEHICLE INSPECTION  )