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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 7 (THROTTLE BODY ASSEMBLY (2ZZ-GE))COMPONENTSREMOVAL & INSTALLATION
2004 Toyota Matrix XR, FWD, Standard

Removal & Installation

2004 Toyota Matrix XR, FWD, StandardSECTION Removal & Installation
WARNING: This page is about a different variant/trim than selected.
  1. DRAIN ENGINE COOLANT (See  REPLACEMENT  ) 
  2. DISCONNECT BATTERY NEGATIVE TERMINAL 
  3. REMOVE CYLINDER HEAD COVER NO. 2 
    Fig 1: Removing Cylinder Head Cover No. 2
    G00923021Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the 3 bolts and nut, then remove the cylinder head cover No. 2.
  4. SEPARATE ACCELERATOR CONTROL CABLE ASSY 
    Fig 2: Separating Accelerator Control Cable Assy
    G00923022Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the wire of the accelerator control cable from the accelerator control cable support No. 2.
    2. Loosen the nut.
    3. Remove the cable end from the throttle lever, then separate the accelerator control cable.
  5. REMOVE AIR CLEANER CAP SUB-ASSY 
    Fig 3: Removing Air Cleaner Cap Sub-Assy
    G00923023Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the mass air flow sensor connector.
    2. Disconnect the 2 VSV connectors.
    3. Disconnect the fuel vapor feed hose No. 1.
    4. Disconnect the fuel vapor feed hose No. 3.
    5. Disconnect the fuel vapor feed hose.
    6. Disconnect the 3 vacuum hoses.
    7. Loosen the air cleaner hose clamp.
    8. Unlock the 2 clamp hooks.
    9. Remove the air cleaner cap together with the air cleaner hose No. 1.
  6. REMOVE THROTTLE BODY ASSY 
    Fig 4: Removing Throttle Body Assy
    G00923024Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the throttle position sensor connector.
    2. Disconnect the ISC valve connector.
    3. Disconnect the ventilation hose.
    4. Disconnect the water by-pass hose No. 3.
    5. Disconnect the water by-pass hose No. 2.
      Fig 5: Disconnecting Water By-Pass Hose No.3 & 2
      G00923025Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Remove the 2 bolts and 2 nuts, then remove the accelerator control cable bracket and throttle body.
      Fig 6: Removing Accelerator Control Cable Bracket & Throttle Body Nuts & Bolts
      G00923026Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Remove the gasket from the intake manifold.
  7. REMOVE THROTTLE POSITION SENSOR 
    1. Remove the 2 screws, then remove the throttle position sensor.
    Fig 7: Removing Throttle Position Sensor Screw
    G00923027Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE ISC VALVE 
    1. Remove the 3 screws, then remove the ISC valve.
      2. Fig 8: Removing ISC Valve Screws
      G00923028Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the gasket from the throttle body.
  9. INSTALL ISC VALVE 
    1. Install a new gasket to the throttle body.
    2. Install the ISC valve with the 3 screws.
      1. Torque: 3.7 N.m (38 kgf.cm, 33 in.lbf) 
  10. INSTALL THROTTLE POSITION SENSOR 
    1. Make sure that the throttle valve is fully closed.
    2. With the throttle position sensor rotated 30° to 45° counterclockwise about the fully-closed position of the throttle valve, install the throttle position sensor to the throttle body.
    3. Rotate the throttle position sensor clockwise, then secure it with the 2 screws.
      Fig 9: Identifying Sensor Rotating Position
      G00923029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Torque: 2.0 N.m (20 kgf.cm, 18 in.lbf) 
  11. INSTALL THROTTLE BODY ASSY 
    1. Install a new gasket to the intake manifold.
    2. Install the throttle body and accelerator control cable bracket with the 2 bolts and 2 nuts.
      1. Torque: 22 N.m (224 kgf.cm, 16 ft.lbf) 
    3. Connect the water by-pass hose No. 2.
    4. Connect the water by-pass hose No. 3.
    5. Connect the ventilation hose.
    6. Connect the ISC valve connector.
    7. Connect the throttle position sensor connector.
  12. INSTALL AIR CLEANER CAP SUB-ASSY 
    1. Torque: 2.0 N.m (20 kgf.cm, 18 in.lbf) 
  13. INSTALL ACCELERATOR CONTROL CABLE ASSY 
  14. INSTALL CYLINDER HEAD COVER NO. 2 
    1. Torque: 7.0 N.m (71 kgf.cm, 62 in.lbf) 
  15. CONNECT BATTERY NEGATIVE TERMINAL 
    1. Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf) 
  16. ADD ENGINE COOLANT (See  REPLACEMENT  ) 
  17. CHECK FOR ENGINE COOLANT LEAKS (See COOLING SYSTEM (MAY, 2003)  )  
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.